Volume 1, Book 2, Number 47:
Narrated Abu Huraira:
One day while the Prophet was sitting in the company of some people, (The angel) Gabriel came
and asked, “What is faith?” Allah’s Apostle replied, ‘Faith is to believe in Allah, His angels, (the) meet –
ing with Him, His Apostles, and to believe in Resurrection.” Then he further asked, “What is Islam?”
Allah’s Apostle replied, “To worship Allah Alone and none else, to offer prayers perfectly to pay the
compulsory charity (Zakat) and to observe fasts during the month of Ramadan.” Then he further
asked, “What is Ihsan (perfection)?” Allah’s Apostle replied, “To worship Allah as if you see Him, and
if you cannot achieve this state of devotion then you must consider that He is looking at you.” Then
he further asked, “When will the Hour be established?” Allah’s Apostle replied, “The answerer has no
better knowledge than the questioner. But I will inform you about its portents.
1. When a slave (lady) gives birth to her master.
2. When the shepherds of black camels start boasting and competing with others in the construc –
tion of higher buildings. And the Hour is one of five things which nobody knows except Allah.
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SAHIH BUKHARI VOLUME 1 > BOOK 2: BELIEF
The Prophet then recited: “Verily, with Allah (Alone) is the knowledge of the Hour–.” (31. 34)
Then that man (Gabriel) left and the Prophet asked his companions to call him back, but they could
not see him. Then the Prophet said, “That was Gabriel who came to teach the people their religion.”
Abu ‘Abdullah said: He (the Prophet) considered all that as a part of faith.