Sahih Muslim
The Book of Faith (Kitab Al-Iman)
Book Number: 001 / Hadith Number: 102
Sufyan narrated on the authority of Ziyad b. 'Ilaqa that he heard Jarir b. 'Abdullah saying: I pledged allegiance to the Apostle of Allah may peace and blessings be upon him) on sincerity and well-wishing for every Muslim.