Sahih Muslim | Book 19 | Chapter 17

Narrated by Ibn Umar
It has been narrated on the authority of Ibn Umar that the Messenger of Allah (may peace be upon him) allowed two shares from the spoils to the horseman and one share to the footman.
Narrated by Ubaidullah
The same tradition has been narrated on the authority of Ubaidullah by a different chain of transmitters who do not mention the words: "from the booty".