Sahih Bukhari

Narrated Al-Bara:Allah's Messenger (ﷺ) sent us to Yemen along with Khalid bin Al-Walid. Later on he sent `Ali bin Abi Talib in his place. The Prophet (ﷺ) said to `Ali, ""Give Khalid's companions the choice of either staying with you (in Yemen) or returning to Medina."" I was one of those who stayed with him (i.e. `Ali) and got several Awaq (of gold from the war booty)