I went out to at-Tur and met Ka'b al-Ahbar with whom I sat, he telling me about the Torah and I telling him about God's Messenger. One of the things I told him was that God's Messenger had said, “The best day on which the sun has risen is Friday; on it Adam was created, on it he was cast down [from paradise], on it his repentance was accepted, on it he died, on it the last hour will come, on Friday every beast is on the outlook from dawn to sunrise from fear of the last hour, but not jinn and men, and it contains a time at which no Muslim will pray and ask anything from God without His giving him it." Ka'b said that was one day every year, but when I insisted that it was on every Friday Ka'b read the Torah and said that God's Messenger had spoken the truth. Abu Huraira said: I met ‘Abdallah b. Salam and told him of my meeting with Ka'b al-Ahbar and of what I had told him about Friday, telling him that Ka'b had said that was one day every year. ‘Abdallah b. Salam said that Ka'b had lied, but when I told him that Ka'b afterwards read the Torah and said that it was every Friday he said that Ka'b had spoken the truth. ‘Abdallah b. Salam then said that he knew what time it was, and when I asked him to tell me about it and not keep it to himself he replied that it was at the very end of Friday. I asked how that could be when God's Messenger had said, “No Muslim will pray in it . . . and he asked me if God’s Messenger had not said, “If anyone is seated waiting for the prayer he is engaged in the prayer until he observes it." When I replied that that was so he said that that was how it came about. Malik, Abu Dawud, Tirmidhi and Nasa’i transmitted it, and Ahmad transmitted it up to the statement that Ka'b had spoken the truth.