Riyad as-Salihin 2:49

Jabir (May Allah be pleased with him) reported:

The Messenger of Allah (ﷺ) visited the house of a man of the Ansar with one of his Companions and said to him, "If you have some water in the water-skin left over from last night, give it to us for drinking; otherwise, we shall drink from some stream directly." [Al- Bukhari] .