Sahih Muslim
The Book of Faith (Kitab Al-Iman)
Book Number: 001 / Hadith Number: 279
The same hadith has been narrated on the authority of Muhammad b Sa'd and these words (are also there): The Messenger of Allah (may peace be upon him) gave a stroke on my neck or between my two shoulders and said: Sa'd, do you fight with me simply because I gave (a share) to a man?