“During certain expeditions people complained before the Messenger of Allah against fleas that irritated them. He (the Messenger of Allah) said, ‘When going into your bed say, “O black jumping thing that does not stop by the barrier or door I ask you by the original Book, do not irritate me and my companions until the night passes and morning comes with whatever it will bring along.’” The narrator has said, ‘As we know the last part of this Hadith has the following expression: ‘Until morning comes back when it is the time to come back.’”