When I set out for Hajj, I passed by some people offering a prayer, I asked, “What is this mosque?” They said, “This is the Tree where Allah’s Messenger (ﷺ) took the Ar-Ridwan Pledge of allegiance. Then I went to Sa`id bin Musaiyab and informed him about it. Sa`id said, “My father said that he was amongst those who had given the Pledge of allegiance to Allah’s Messenger (ﷺ) beneath the Tree. He (i.e. my father) said, “When we set out the following year, we forgot the Tree and were unable to recognize it. “Then Sa`id said (perhaps ironically) “The companions of the Prophet (ﷺ) could not recognize it; nevertheless, you do recognize it; therefore you have a better knowledge.”
(The tree where the Ridwan Pledge of allegiance was taken by the Prophet) was mentioned before Sa`id bin Al-Musaiyab. On that he smiled and said, “My father informed me (about it) and he had witnessed it (i.e. the Pledge) .”
Some Jews said, “Had this Verse been revealed to us, we would have taken that day as `Id (festival).” `Umar said, “What Verse?” They said:– “This day I have Perfected your religion for you, Completed My Favor upon you And have chosen for you Islam as your religion” (5.3) `Umar said, “I know the place where it was revealed; It was revealed while Allah’s Messenger (ﷺ) was staying at `Arafat.”
The Jews said to `Umar, “You (i.e. Muslims) recite a Verse, and had it been revealed to us, we would have taken the day of its revelation as a day of celebration.” `Umar said, “I know very well when and where it was revealed, and where Allah’s Messenger (ﷺ) was when it was revealed. (It was revealed on) the day of `Arafat (Hajj Day), and by Allah, I was at `Arafat” Sufyan, a sub-narrator said: I am in doubt whether the Verse:– “This day I have perfected your religion for you.” was revealed on a Friday or not.
`Abdullah said, “The best talk is Allah’s Book (Qur’an), and the best guidance is the guidance of Muhammad.”
Abu Bakr said to the delegate of Buzakha. “Follow the tails of the camels till Allah shows the Caliph (successor) of His Prophet and Al-Muhajirin (emigrants) something because of which you may excuse yourselves.”
A Jew said to `Umar, “O Chief of the Believers, if this verse: ‘This day I have perfected your religion for you, completed My favors upon you, and have chosen for you, Islam as your religion.’ (5.3) had been revealed upon us, we would have taken that day as an `Id (festival) day.” `Umar said, “I know definitely on what day this Verse was revealed; it was revealed on the day of `Arafat, on a Friday.”
He heard the Prophet (ﷺ), when he raised his head in the last rak’ah of the subh prayer, say: “O Allah, curse so-and-so and so-and-so,” supplicating against some of the hypocrites. Then Allah revealed the words: “Not for you is the decision; whether He turns in mercy to (pardon) them or punishes them; verily, they are the wrongdoers.”