Muhammad bin Yusuf al-Baykandi محمد بن يوسف البيكندي البخاري · The Book of Forgetfulness (In Prayer)

Abu Hurairah said: "The Messenger of Allah (ﷺ) stood up to pray and we stood up with him. A Bedouin said- while he was praying- 'O Allah, have mercy on me and Muhammad and do not have mercy on anyone else.' When the Messenger of Allah (ﷺ) said the Salam, he said to the Bedouin: 'You have limited something vast," meaning the mercy of Allah (SWT)."

"Alqamah prayed five (rak'ahs) and when he said the taslim, Ibrahim bin Suwaid said : 'O Abu Shibl, you prayed five!' He said: 'Is that true, O odd-eyed one?' Then he prostrated two prostrations of forgetfulness, then he said: 'This is what the Messenger of Allah (ﷺ) did.'"

The Messenger of Allah (ﷺ) came one day with a joyful expression on his face. He said: "Jibril came to me and said: 'Will it not please you, O Muhammad, (to know) that no one of your Ummah will send salah upon you but I will send salah upon him tenfold, and no one will send salams upon you but I will send salams upon him tenfold?"