It was narrated from Abu Hurairah that when the Messenger of Allah p.b.u.h was coming back from the battle of Khaibar, night came and he felt sleepy, so he made camp and said to Bilál: “Keep watch for us tonight.” Bilâl prayed as much as Allah decreed for him, and the Messenger of Allah p.b.u.h and his Companions went to sleep. When dawn was approaching, Bilál went to his mount, facing towards the east, watching for the dawn. Then Bilâl’s eyes grew heavy while he was leaning on his mount (and he slept). Neither Bilâl nor any of his Companions woke until they felt the heat of the sun. The Messenger of Allah was the first one to wake up. The Messenger of Allah P.B.U.H was startled and said: “0 Bilâl’ Bilâl said: “The same thing happened to me as happened to you. May my father and mother be ransomed for you, 0 Messenger of Allah!” He said: “Bring your mounts forward a little.” So they brought their mounts forward a little (away from that place). Then the Messenger of Allah performed ablution and told BilâI to call the Iqdmah for prayer, and he led them in the prayer. When the Prophet finished praying, he said: “Whoever forgets a StrltTh, Jet him pray it when he remembers, for Allah says: And perform the prayer for My remembrance.” He (one of the narrators) said: “lbn Shihdb used to recite this Verse as meaning, ‘when you remember.”