Musannaf Ibn Abi Shaybah

Hazrat Bara narrates that when we camped on the day of Hudaybiyyah, we saw that those who had arrived earlier had already drunk all the water from the well. The Noble Prophet (peace and blessings be upon him) sat by the well and asked for a bucket. He took some water from it into his blessed mouth and then put it back into the bucket, and prayed to Allah. As a result, the water increased so much that everyone drank to their fill.