Allah tells us that His servant and Messenger Shu`ayb, peace be upon him, warned his people, the people of Madyan, and commanded them to worship Allah Alone with no partner or associate, and to fear the wrath and punishment of Allah on the Day of Resurrection. He said:

﴿يقَوْمِ اعْبُدُواْ اللَّهَ وَارْجُواْ الْيَوْمَ الاٌّخِرَ﴾

(O my people! Worship Allah and hope for the last Day,) Ibn Jarir said: "Some of them said that this meant: Fear the Last Day.'' This is like the Ayah,

﴿لِّمَن كَانَ يَرْجُو اللَّهَ وَالْيَوْمَ الاٌّخِرَ﴾

(for those who look forward to (meeting with) Allah and the Last Day) (60:6).

﴿وَلاَ تَعْثَوْاْ فِى الاٌّرْضِ مُفْسِدِينَ﴾

(and commit no mischief on the earth as mischief-makers.) This is forbidding them to make mischief on earth by spreading corruption, which means going around doing evil to people. They used to cheat in weights and measures, and ambush people on the road; this is in addition to their disbelief in Allah and His Messenger. So Allah destroyed them with a mighty earthquake that convulsed their land, and the Sayhah (shout) which tore their hearts from their bodies, and the torment of the Day of Shade, when their souls were taken. This was the torment of a great day. We have already examined their story in detail in Surat Al-A`raf, Surat Hud and Surat Ash-Shu`ara'.

﴿فَأَصْبَحُواْ فِي دَارِهِمْ جَـثِمِينَ﴾

(and they lay, prostrate in their dwellings.) Qatadah said, "They were dead.'' Others said that they were thrown on top of one another.

﴿وَعَاداً وَثَمُودَ وَقَد تَّبَيَّنَ لَكُم مِّن مَّسَـكِنِهِمْ وَزَيَّنَ لَهُمُ الشَّيْطَـنُ أَعْمَـلَهُمْ فَصَدَّهُمْ عَنِ السَّبِيلِ وَكَانُواْ مُسْتَبْصِرِينَ - وَقَـرُونَ وَفِرْعَوْنَ وَهَـمَـنَ وَلَقَدْ جَآءَهُمْ مُّوسَى بِالْبَيِّنَـتِ فَاسْتَكْبَرُواْ فِى الاٌّرْضِ وَمَا كَانُواْ سَـبِقِينَ - فَكُلاًّ أَخَذْنَا بِذَنبِهِ فَمِنْهُم مَّن أَرْسَلْنَا عَلَيْهِ حَاصِباً وَمِنْهُمْ مَّنْ أَخَذَتْهُ الصَّيْحَةُ وَمِنْهُمْ مَّنْ خَسَفْنَا بِهِ الاٌّرْضَ وَمِنْهُمْ مَّنْ أَغْرَقْنَا وَمَا كَانَ اللَّهُ لِيَظْلِمَهُمْ وَلَـكِن كَانُواْ أَنفُسَهُمْ يَظْلِمُونَ ﴾

(38. And `Ad and Thamud! And indeed (their destruction) is clearly apparent to you from their (ruined) dwellings. Shaytan made their deeds fair seeming to them, and turned them away from the path, though they were intelligent.) (39. And Qarun, Fir`awn, and Haman. And indeed Musa came to them with clear Ayat, but they were arrogant in the land, yet they could not outstrip Us.) (40. So, We punished each for his sins, of them were some on whom We sent a Hasib, and of them were some who were overtaken by As-Sayhah, and of them were some whom We caused the earth to swallow, and of them were some whom We drowned. It was not Allah Who wronged them, but they wronged themselves.)