Sahih al-Bukhari 4809

Qutayba related to us: Jarir related to us, from al-A'mash, from Abu al-Duha, from Masruq, who said: We went in to Abdullah ibn Masud. He said: People, whoever knows something should speak accordingly; whoever does not know should say, 'Allah knows best.' It is part of knowledge to say 'Allah knows best' about what one does not know. Allah, Mighty and Majestic, said to His Prophet (peace and blessings of Allah be upon him): 'Say: I ask you for no reward for it, and I am not one of those who fabricate' (Quran 38:86). I will tell you about the Smoke. The Messenger of Allah (peace and blessings of Allah be upon him) called Quraysh to Islam, but they were slow to respond, so he said: 'O Allah, help me against them with seven years like the seven years of Joseph.' A year of famine struck them and devastated everything, until they ate carrion and hides. A man began to see smoke between himself and the sky from hunger. Allah, Mighty and Majestic, said: 'Watch for the day when the sky brings a manifest smoke, enveloping the people. This is a painful punishment' (Quran 44:10–11). He said: They prayed: 'Our Lord, remove the punishment from us; indeed, we are believers.' 'How will they take heed, when a clear Messenger has already come to them? Then they turned away from him and said, “A man taught him, a madman!” We shall remove the punishment a little; you will indeed return [to disbelief]' (Quran 44:12–15). Will the punishment be removed on the Day of Resurrection? He said: It was removed, then they returned to their disbelief, and Allah seized them on the day of Badr. Allah Most High said: 'On the day We seize with the greatest seizure; indeed, We shall take retribution' (Quran 44:16).