بَايَعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم عَلَى إِقَامِ الصَّلاَةِ، وَإِيتَاءِ الزَّكَاةِ، وَالنُّصْحِ لِكُلِّ مُسْلِمٍ.
Jarir ibn Abdullah reported: I pledged allegiance to the Messenger of Allah ﷺ to establish the prayer, to give Zakat and to be sincere towards every Muslim.
also in Sahih al-Bukhari 58, Sahih al-Bukhari 524