As if they had never lived therein; know that Thamud denied their Lord, then Thamud was wiped out.
Verses 27: 48-52 say: "And in the city, there were nine family heads causing mischief in the land and not reforming. They said, ‘Swear by Allah that we will kill him and his family by night. Then we will say to his guardian, “We did not witness the destruction of his family, and indeed, we are truthful.”’ They devised a plan, and We also devised a plan, though they did not perceive it. Look at the consequence of their plan: We destroyed them and all their people together. These are their ruined houses, a sign for people who use their intellect."
Just as the wicked people of Messenger Swalih plotted against him, the people of Messenger Muhammad in Mecca also plotted against him, as explained in verse 8:30. Today, whoever holds fast to Adhikr—the Safeguard—will be protected, as explained in verses 3:101 and 5:48. See explanation 3:79; 7:73-79; 9:29; and 11:55-56.