Whilst a man was narrating hadeeth in the Great Mosque, he said: On the Day of Resurrection a smoke will come down from the sky and will take away the hearing and sight of the hypocrites and the believers will get something like a cold from it. Masrooq said: I entered upon ‘Abdullah and told him about that. He was reclining then he sat up straight and started speaking. He said: O people, whoever among you is asked about knowledge that he has, let him speak of it, and is he does not know, let him say: Allah knows best. It is a part of knowledge to say when one does not know, Allah knows best. Allah, may He be glorified and exalted, said to His Prophet (ﷺ): "Say (O Muhammad (ﷺ)): “No wage do I ask of you for this (the Qur'an), nor am I one of the Mutakallifoon (those who pretend and fabricate things which do not exist)" (Sad 38.86). When Quraish rejected (the call of) the Prophet (ﷺ) and displayed a stubborn attitude towards him, he said: “O Allah, help me with seven (years of hardship) like the seven of Yoosuf." Then they were afflicted by a famine in which they even ate bones and dead meat because of hunger, until one of them would start to see something like smoke between him and the sky, because of hunger. Then they said: “Our Lord! Remove the torment from us, really we shall become believers!" (44:12). It was said to him: If We relieve them they will revert (to disbelief). So he called upon his Lord and He relieved them, and they reverted (to disbelief), but Allah wrought vengeance upon them on the day of Badr. Allah, may He be exalted, says: "Then wait you for the day when the sky will bring forth a visible smoke - up to - On the Day when We shall seize you with the greatest seizure (punishment). Verily, We will exact retribution" (ad-Dukhan 44:10-16). Ibn Numair said; ’Abdullah said: If this was referring to the Day of Resurrection. He would not have mentioned relief for them.