55وَلا يَزالُ الَّذينَ كَفَروا في مِريَةٍ مِنهُ حَتّىٰ تَأتِيَهُمُ السّاعَةُ بَغتَةً أَو يَأتِيَهُم عَذابُ يَومٍ عَقيمٍQaribullah & DarwishThe unbelievers will never cease to doubt it until the Hour overtakes them suddenly or the punishment of the Barren Day comes upon them.