Sahih Muslim 4758
صحيح مسلم#4758SahihIt has been narrated on the authority of Yahya b. Husain who learnt the tradition from his grandmother. She said that she heard the Prophet (ﷺ) delivering his sermon on the occasion of the Last Pilgrimage. He was saying:If a slave is appointed over you and he conducts your affairs according to the Book of Allah, you should listen to him and obeey (his orders)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 33:56