From Umm Ayman, who said: The Messenger of Allah (SAW) got up during the night to go to a jar at the side of the house, and urinated in it. I got up during the night, and I was thirsty, so I drank what was in it, but I wasn’t aware of anything. And when the Prophet (SAW) arose in the morning, He said: Oh Umm Ayman, get up and pour out what is in that jar. She said: I - I swear by Allah I drank what was in it. And the Messenger of Allah (SAW) laughed until his molars showed, then said: Indeed you will never suffer stomach pain.