7:38He will say, “Join the crowds of jinn and humans who have gone into the Fire before you.” Every time a crowd enters, it will curse its sister-crowd. Until, when they are all in it, the last of them will say to the first of them, “Our Lord, these are the ones who misled us, so inflict on them a double punishment in the Fire.” He will say, “Each will have a double, but you do not know.”

7:156“And inscribe for us goodness in this world, and in the Hereafter. We have turned to You.” He said, “My punishment—I inflict it upon whomever I will, but My mercy encompasses all things. I will specify it for those who act righteously and practice regular charity, and those who believe in Our signs.”

7:167Your Lord has announced that, He would send against them, until the Day of Resurrection, those who would inflict terrible suffering upon them. Your Lord is swift in retribution, yet He is Forgiving and Merciful.