(Ad-Dukhan) 44 : 12
رَبَّنَا اكْشِفْ عَنَّا الْعَذَابَ إِنَّا مُؤْمِنُونَ
“Our Lord! You remove from us the punishment; indeed, we are believers.”
When the opposition of the Meccan pagans became intolerable towards the Messenger and the Message, the Messenger prayed to Allah to test them with famine, just like the brothers of Prophet Yoosuf were tested with. Thus, there happened a famine which caused them to experience as if a smoke covered all over the land. Then they requested the Messenger to pray to the Lord for removing to punishment from them. See explanation 42:26-27; and 43:48-50.