I pledged allegiance to the Messenger of Allah ﷺ to establish the prayer, to give the zakat, and to be sincere toward every Muslim.
بايعت رسول الله ﷺ على إقام الصلاة، وإيتاء الزكاة، والنصح لكل مسلم.
Bukhari reported it in the chapters on the times of prayer (524), and Muslim in the book of faith (56), both from the hadith of Ismail bin Abu Khalid, from Qays, from Jareer bin Abdullah, who narrated it.