a pair of doves and a spider at the entrance of a cave

Doves are believed to have helped in distracting Muhammad's pursuers outside the cave of Thaw'r. As Muhammad took refuge within the cave, a pair of pigeons and a spider were sent to settle at the entrance of the cave; the spider creating a web and the pigeons creating a nest that they laid eggs in. Thus, the Muhammad's pursuers assumed that, as both animals would not have settled there if there were any disturbances, the Muhammad and his companion Abu Bakar could not have taken refuge there, sparing them from capture.