Scholars of Tafsir and genealogy say that (the tribe of Thamud descended from) Thamud bin `Athir bin Iram bin Sam bin Nuh, and he is brother of Jadis son of `Athir, similarly the tribe of Tasm, and they were from the ancient Arabs, Al-`Aribah, before the time of Ibrahim, Thamud came after `Ad. They dwelled between the area of the Hijaz (Western Arabia) and Ash-Sham (Greater Syria). The Messenger of Allah passed by the area and ruins of Thamud when he went to Tabuk (in northern Arabia) during the ninth year of Hijrah. Imam Ahmad recorded that Ibn `Umar said, "When the Messenger of Allah went to the area of Al-Hijr in Tabuk with the people, he camped near the homes of Thamud, in Al-Hijr and the people brought water from the wells that Thamud used before. They used that water to make dough and placed the pots (on fire) for cooking. However, the Prophet commanded them to spill the contents of the pots and to give the dough to their camels. He then marched forth with them from that area to another area, near the well that the camel (as will follow) used to drink from. He forbade the Companions from entering the area where people were tormented, saying,
«إِنِّي أَخْشَى أَنْ يُصِيبَكُمْ مِثْلُ مَا أَصَابَهُمْ فَلَا تَدْخُلُوا عَلَيْهِم»
(I fear that what befell them might befall you as well. Therefore, do not enter on them.)'' Ahmad narrated that `Abdullah bin `Umar said that the Messenger of Allah said while in the Hijr area,
«لَا تَدْخُلُوا عَلَى هؤُلَاءِ الْمُعَذَّبِينَ إِلَّا أَنْ تَكُونُوا بَاكِينَ فَإِنْ لَمْ تَكُونُوا بَاكِينَ فَلَا تَدْخُلُوا عَلَيْهِمْ أَنْ يُصِيبَكُمْ مِثْلَ مَا أَصَابَهُم»
(Do not enter on these who were tormented, unless you do so while crying. If you are not crying, then do not enter on them, so that what befell them does not befall you, as well.) The basis of this Hadith is mentioned in Two Sahihs.