Sahih Muslim 4904
صحيح مسلم#4904SahihIt has been narrated on the authority of Abu Sa'id Khudri that the Messenger of Allah (ﷺ) sent a force to Banu Lihyan (who are from Banu Hudhail, and said:One man from every two and the reward (will be divided) between the two
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: 33:200