الإيمان : Hadeeth No:101
It is narrated on the authority of Jarir that he observed I gave pledge of allegiance to the Messenger of Allaah (may peace and blessings be upon him) on the observance of prayer, payment of Zakat, and sincerity and well-wishing for every Muslim....
الجهاد والسير : Hadeeth No:4398
This tradition has been narrated by Ibn Abu Najah through a different chain of transmitters up to the word: Zahaqa, (This version) does not contain the second verse and substitutes Sanam for Nusub (both the words mean" idol" or" image" that is worshipped)....