The Letter Qaf 50:12. Juz 26, page 518.
كَذَّبَتْ قَبْلَهُمْ قَوْمُ نُوحٍ وَأَصْحَـٰبُ ٱلرَّسِّ وَثَمُودُ١٢The folk of Noah denied (the truth) before them, and (so did) the dwellers at Ar-Rass and (the tribe of) Thamud,
Qaf 50:12, translated by Marmaduke Pickthall