54:18
كَذَّبَتْ عَادٌ فَكَيْفَ كَانَ عَذَابِى وَنُذُرِ
kadhabat ʿādun fakayfa kāna ʿadhābī wanudhuri
The people of 'Ad also rejected the truth. How [terrible] was My punishment and [the fulfilment of] My warnings!
‘Âd (people) belied (their Prophet, Hûd); then how (terrible) was My Torment and My Warnings?