Musnad Ahmad 30:3127

Surayj narrated to us, Fulayh narrated to us, Hilal ibn Ali narrated to us, from Abd al-Rahman ibn Abi Amrah, from Abu Hurayrah, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "By Allah, I do not give you, nor do I withhold from you. I am only a distributor; I place it where I am commanded."