Jabir ibn 'Abdullah · The Book of al-Bay'ah

"I came to the Prophet and said to him: 'I pledge to you to hear and obey in what I like and what I dislike.' The Prophet said: 'Can you do that, O Jarir,' or, 'Are you able for that?' He said: Say: As much as I can.' So he accepted my pledge (for that), and that I be sincere toward every Muslim."

I pledged to the Messenger of Allah (ﷺ) to perform Salah, pay the Zakah, be sincere toward every Muslim and forsake the idolaters.