42وَإِن يُكَذِّبوكَ فَقَد كَذَّبَت قَبلَهُم قَومُ نوحٍ وَعادٌ وَثَمودُ(Irfan-ul-Quran)And if these (disbelievers) reject you then the people of Nuh (Noah) and ‘Ad and Thamud (also) denied (their Prophets),