Hadith 61
Narrated Ali ibn Abu Talib: The key to prayer is purification; its beginning is takbir and its end is taslim.
Hadith 618
Narrated Ali ibn Abu Talib: The Prophet ﷺ said: The key of prayer is purification; takbir (saying "Allah is most great") makes (all acts which break prayer) unlawful and taslim (uttering the salutation) makes (all such acts) lawful.
Hadith 4629
Muhammad bin al-Hanafiyyah said: I said to my father: Which of the people after the Messenger of Allah ﷺ is best? He replied: Abu Bakr. I then asked: Who comes next? He said: Umar. I was then afraid of asking him who came next, and he might mention Uthman, so I said: You came next, O my father? He said: I am only a man among the Muslims.
Hadith 4967
Muhammad bin al-Hanafiyyah quoted Ali as saying: I said: Messenger of Allah! tell me if a son is born to me after your death, may I give him your name and your kunyah? He replied: Yes. The transmitter Abu Bakr did not mention the words "I said". Instead, he said: Ali said to the Prophet ﷺ.