وَعَادًا وَثَمُودَ وَأَصْحَابَ الرَّسِّ وَقُرُونًا بَيْنَ ذَٰلِكَ كَثِيرًا (38)
(25:38) Likewise were destroyed the `Ad and the Thamud and the people of the Rass, *52 and many a generation in between.
*52) There is no definite knowledge about "the people of the Raas'' . Different commentators have said different things about them, but nothing is convincing. The only thing that may be said about them is that they were a people who had killed their Prophet by throwing him into or hanging him down a "Rass " (an old or dry well).