تفسير : ((the tribe of) thamud) the folk of salih (rejected warnings) disbelieved in salih as well as in all the messengers.
Jalāl al-Dīn al-Maḥallī
تفسير : thamūd denied the warnings (nudhur is the plural of nadhīr, with the sense of mundhir), that is to say, [they denied] those matters which their prophet sālih warned them of if they refused to believe in him and to follow him,