Islam, Iman and Ihsan are three names a reader meets early, sometimes inside a single hadith [a report of what the Prophet ﷺ said or did], and they can sound like three names for one thing. They are not. They are three levels of one religion, and the difference between them is plain once it is gathered in one place: Islam is the outward actions, Iman [faith: what the heart believes and holds true] is the inward beliefs, and Ihsan [excellence in worship] is worship brought to its most perfect level.
This page gathers that difference in one place, in the words of the explanation books in my library. It is a short doorway page. The hadith of Jibril [the angel Gabriel], in which the Prophet ﷺ was asked about all three, stands in full on its own page in the Forty Hadith series, linked at the end, and it is not repeated here. What follows is the difference itself, as the books draw it.
One Religion, Three Levels
In the Three Fundamental Principles, the levels are named in a single line of the treatise itself:
“And it is of three levels: Islaam (submission and obedience to Allah), eemaan (true faith comprising belief of the heart, speech of the tongue and action of the limbs), and ihsaan (perfection of worship). Each level has its pillars.”
(The text of the Three Fundamental Principles, as printed in Shaykh Muhammad ibn Salih al-Uthaymeen, Explanation of the Three Fundamental Principles of Islaam, printed p. 117.)
Shaykh Ibn Uthaymeen notes on the same line that the author “explained that the Religion of Islaam is of three levels, one above the other, and they are: Islaam, eemaan and ihsaan” (note 90, printed p. 117). So the three are not three religions, and not three separate paths. They are levels of the one religion, and each level has its pillars.
The Difference, Gathered in One Place
Shaykh al-Fawzan gathers the three side by side in his explanation, while he is speaking of the types of worship:
“Al-islam is by way of its five pillars: the two testimonies, the establishment of the prayer, the payment of the zakah, fasting in the month of Ramadan, and pilgrimage to the Sacred House of Allah. All of these are monetary and bodily acts of worship.
Likewise, al-iman is by way of its six pillars, and it is from the actions of the heart. Al-iman is: belief in Allah, His angels, His Books, His messengers, the Last Day, and belief in the divine decree (its good and its evil). This is worship of the heart.
Likewise, al-ihsan, and it is one pillar: that you worship Allah as though you see Him, and even though you do not see Him, He certainly sees you. This is the highest form of worship. This is because al-ihsan is the highest type of worship. These are referred to as ‘the levels of the religion’ because together, they make up the religion.”
(Shaykh Salih al-Fawzan, Explanation of the Three Fundamental Principles, printed p. 149.)
Read together, the difference is this. Islam is carried by the five outward deeds, done with the body and with wealth. Iman is carried by the six beliefs, and its place is the heart. Ihsan is a single pillar, and it is not a new set of deeds: it is the same worship, done as though you see Allah, and it is the highest of the three.
When the Two Words Stand Together, and When One Stands Alone
One point still confuses readers. In some texts, Islam and Iman seem to change places, and the books explain why. When the two words are mentioned together, each one keeps its own meaning:
“When al-islam and al-iman are mentioned together, then al-islam means the outward actions and al-iman means the inward actions (the actions of the heart and that which it establishes from affirmation and knowledge). And it is a must that one has al-islam and al-iman together.”
(Shaykh Salih al-Fawzan, Explanation of the Three Fundamental Principles, printed p. 276.)
And when only one of them is mentioned, it does not shrink to its narrow meaning. It carries the other one with it:
“If they are mentioned together, then each of them has a specific meaning, while if one of them is mentioned [alone], then the other is included in it. If al-iman is mentioned alone, then al-islam is included in it, and if al-islam is mentioned alone, then al-iman is included in it, because al-islam is not correct without iman, and iman is not correct without islam. It is a must that a person has both of them, so they are inseparable.”
(Shaykh Salih al-Fawzan, Explanation of the Three Fundamental Principles, printed p. 276.)
This is why Shaykh Ibn Uthaymeen, defining Iman when it stands on its own, gives it its full width: “Certain Faith in the heart, speech of the tongue and action of the parts of the body” (note 121, printed p. 133). Mentioned alone, Iman includes the words and the deeds. Mentioned beside Islam, the outward deeds are named Islam, and the belief of the heart is named Iman. Shaykh al-Fawzan draws the practical end of the rule: “It is a must that the Muslim brings the two of them together. He must be a Muslim and a believer, establishing the pillars of al-islam and establishing the pillars of al-iman; he must bring them together” (Explanation of the Three Fundamental Principles, printed p. 236).
Levels That Narrow as They Rise
The levels are also an order. Islam is the widest of the three, and Ihsan is the narrowest:
“The meaning of al-maratib is ‘levels,’ because we say, ‘The religion is of three levels, some of them being higher than others.’ The first of the levels of the religion is al-islam, then al-iman, then al-ihsan. Al-islam is the broadest, then al-iman is more restricted than al-islam, and al-ihsan is more restricted than al-iman.”
(Shaykh Salih al-Fawzan, Explanation of the Three Fundamental Principles, printed p. 190.)
So the one who has Ihsan has Iman and Islam beneath it, because the highest level stands on the two below it. The reverse does not hold: a person may be at the level of Islam, and even at the level of Iman, without having reached Ihsan. In his explanation of the Forty Hadith, Shaykh al-Fawzan says of the people in this same hadith that “the people are not all the same in their Din; among them is the Muslim and then, the Mu’min and then the Muhsin” (Explanation of Imam an-Nawawi’s 40 Hadith, Hadith 2, printed p. 35). A Mu’min is a believer, a Muhsin [a person who has Ihsan] is the one at the top of the three, and Din in his words means the religion. And of Ihsan itself he writes:
“Ihsan is the highest level; and Ihsan means: to do a thing well and perfect it.”
(Shaykh Salih al-Fawzan, Explanation of Imam an-Nawawi’s 40 Hadith, Hadith 2, printed p. 101.)
Ihsan: Worship as Though You See Him
Ihsan deserves one more paragraph, because it is the level a reader may know least. Shaykh Ibn Uthaymeen explains it in his notes on the third level:
“As for ihsaan in the worship of Allah, then it is that you worship Allah as if you were seeing Him, as the Prophet ﷺ said. So worship done in this way, that a person worships his Lord as if he were actually seeing Him is worship that is accompanied by yearning and seeking.”
(Ibn Uthaymeen, Explanation of the Three Fundamental Principles of Islaam, note 132, printed p. 195.)
And Shaykh al-Fawzan, explaining the Prophet’s ﷺ words on this level, says their meaning is: “You are to have certain knowledge that Allah sees you wherever you may be” (Explanation of the Three Fundamental Principles, printed p. 192). Shaykh Ibn Uthaymeen adds that the second part of the words, that He certainly sees you, shows “worship done whilst fleeing and fearing, and is therefore the second level of ihsaan” (note 132, printed p. 195). The deeds are still the deeds of Islam, and the heart still holds the beliefs of Iman. Ihsan is that the worship itself is done with this presence, as though the One who is worshipped is seen.
So, What Is the Difference Between Islam, Iman and Ihsan?
Islam is the first level: the outward actions, and its pillars are five.
Iman is the second level: the beliefs of the heart, and its pillars are six.
Ihsan is the third and highest level: it has one pillar, that you worship Allah as though you see Him, and if you do not see Him, He sees you.
Mentioned together, Islam and Iman each keep their own meaning. Mentioned alone, each one includes the other, and neither is correct without the other.
I put this short page together so the difference stands in one place, in the words of the books. The hadith that names the three, and the fuller treatment of each level, are on the pages linked below, and I ask Allah to make it beneficial.
Further Reading
Hadith 2, The Hadith of Jibril (The Levels of the Religion): the hadith itself in full, with its explanation, in the Forty Hadith series.
The Pillars of Faith (Iman): the six pillars of the second level, treated in full.
What Are the Five Pillars of Islam?: the five pillars of the first level, gathered in one place.
References
Explanation of the Three Fundamental Principles: Shaykh Salih al-Fawzan. Authentic Statements Publications. First Edition, Sha’ban 1440 AH/April 2019. Translated by Raha Batts.
Explanation of the Three Fundamental Principles of Islaam: Shaykh Muhammad ibn Salih al-Uthaymeen. Al-Hidaayah Publishing and Distribution. First Edition, 1418 AH/1997 CE. Translated by Aboo Talhah Daawood ibn Ronald Burbank.
Explanation of Imam an-Nawawi’s 40 Hadith: Shaykh Salih al-Fawzan. Dar Makkah International. (The copy in my library has no title or copyright page, so no edition or translator is named for it.)
Verified on 2026-10-24 against the books listed above.