Sunan Ibn Majah 385

It was narrated from 'Abdullah bin 'Abbas that :On the night of the Jinn the Messenger of Allah said to Ibn Mas'ud: "Do you have water?" He said: "No, only some Nabidh in a large water skin." The Messenger of Allah said: "Good dates and pure water." (i.e. there is no harm from the mixing of the two.) Pour it for me." He said: "So I performed ablution with it