Musnad Ahmad 30:3777

Rawh narrated to us, Hammad bin Salamah narrated to us, from Suhayl bin Abi Salih, from his father, from Abu Hurairah: That the Messenger of Allah (peace and blessings of Allah be upon him) said: "This pulpit of mine is upon a canal from the canals of Paradise. And what is between my chamber and my pulpit is a garden from the gardens of Paradise."