Zaid b. Aslam said that God's Messenger stopped for rest one night on the road to Mecca and made Bilal responsible for wakening them for prayer; but Bilal slept and so did they all, awakening only after sunrise. The people were startled when they awoke, and God’s Messenger ordered them to mount and get out of that wadi, saying, "This is a wadi inhabited by a devil.” So they mounted, and when they had gone out of that wadi God’s Messenger ordered them to dismount and perform ablution, and having ordered Bilal to summon the people to prayer, or pronounce the iqama, he led the people in prayer and afterwards departed. He had noticed some of their dismay, so he said, "You people must realise that God took our spirits, and if He had wished He would have returned them to us at another time than this; so if anyone of you sleeps beyond the time for prayer, or forgets it, then has recourse to it, he should observe it as he has been in the habit of doing at its proper time.” God’s Messenger then turned to Abu Bakr as-Siddiq and said, “The devil came to Bilal while he was standing engaged in prayer, and making him lie down, he kept soothing him as a child is soothed till he fell asleep.” He then summoned Bilal who told him something similar to what he had just told Abu Bakr, whereupon Abu Bakr said. “I testify that you are God’s Messenger.” Malik transmitted it in mursal form.