Sahih Muslim · Hadith 4896

حدثنا حسن بن الربيع، حدثنا حماد بن زيد، عن الجعد أبي عثمان، عن أبي، رجاء عن ابن عباس، يرويه قال قال رسول الله صلى الله عليه وسلم ‏"‏ من رأى من أميره شيئا يكرهه فليصبر فإنه من فارق الجماعة شبرا فمات فميتة جاهلية ‏"‏ ‏.‏

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 handspan and then he died would die the death of one belonging to the days of Jahiliyya.

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).