Sahih Muslim 4586
صحيح مسلم#4586SahihIt has been narrated on the authority of Ibn Umar that the Messenger of Allah (ﷺ) allowed two shares from the spoils to the horseman and one share to the footman
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: 32:67