54:8
مُّهْطِعِينَ إِلَى ٱلدَّاعِ ۖ يَقُولُ ٱلْكَـٰفِرُونَ هَـٰذَا يَوْمٌ عَسِرٌ
muh'ṭiʿīna ilā l-dāʿi yaqūlu l-kāfirūna hādhā yawmun ʿasirun
rushing towards the Summoner. The disbelievers will cry, ‘This is a stern day!’
Hastening towards the caller. The disbelievers will say: "This is a hard Day."