Sahih Muslim | Book 20 | Hadith Number 4559

Narrated by It has been narrated on the authority of Ibn 'Abbas that the messenger of Allah (may peace be upon him)
It has been narrated on the authority of Ibn 'Abbas that the messenger of Allah (may peace be upon him) said: One who found in his Amir something which he disliked should hold his patience, for one who separated from the main body of the Muslims even to the extent of a hand-span and then he died would die the death of one belonging to the days of Jahiliyya.