Allah, may He be glorified and exalted, sent Muhammad (ﷺ) with the truth, and He sent down with him the Book. One of the things that were revealed to him was the verse of stoning. The Messenger of Allah (ﷺ) stoned after him. Then he said: We used to recite, `Do not forsake your real father (and attribute yourself to someone else), for this is an act of kufr, if you do that, or it is an act of kufr to forsake your real father (and attribute yourself to someone else).` And the Messenger of Allah (ﷺ) said: `Do not praise me as the son of Maryam was praised; rather I am a slave, so say: His slave and His Messenger.` Perhaps Ma`mar said: `As the Christians praised the son of Maryam.”
Narrated It was narrated from Salim from Ibn ‘Umar that he said to `Umar:
I heard the people saying something so I decided that I should talk to you. They are saying that you are not going to appoint a successor. He lowered his head for a while, then he looked up and said: Allah, may He be glorified and exalted, will protect His religion. If I do not appoint a successor, the Messenger of Allah (ﷺ) did not appoint a successor either; if I do appoint a successor, Abu Bakr appointed a successor. By Allah, once he mentioned the Messenger of Allah (ﷺ) and Abu Bakr, I realized that he was not going to regard anyone else as equal to the Messenger of Allah (ﷺ) and that he was not going to appoint a successor.