Sahih Muslim
The Book of Drinks (Kitab Al-Ashriba)
Book Number: 023 / Hadith Number: 4979
Sahl reported that Abu Usaid al-Sa'idi came to Allah's Messenger (may peace be upon him) ; the rest of the hadith is the same, but he did not mention this: when he had eaten (the food) she gave him this to drink".