وَإِلَىٰ مَدْيَنَ أَخَاهُمْ شُعَيْبًاۗ قَالَ يَـٰقَوْمِ ٱعْبُدُواْ ٱللَّهَ مَا لَكُم مِّنْ إِلَـٰهٍ غَيْرُهُۥۖ قَدْ جَآءَتْكُم بَيِّنَةٌ مِّن رَّبِّكُمْۖ فَأَوْفُواْ ٱلْكَيْلَ وَٱلْمِيزَانَ وَلَا تَبْخَسُواْ ٱلنَّاسَ أَشْيَآءَهُمْ وَلَا تُفْسِدُواْ فِى ٱلْأَرْضِ بَعْدَ إِصْلَـٰحِهَاۚ ذَٲلِكُمْ خَيْرٌ لَّكُمْ إِن كُنتُم مُّؤْمِنِينَ ٨٥
And unto Midian (We sent) their brother, Shu'eyb. He said: O my people! Serve Allah. Ye have no other Allah save Him. Lo! a clear proof hath come unto you from your Lord; so give full measure and full weight and wrong not mankind in their goods, and work not confusion in the earth after the fair ordering thereof. That will be better for you, if ye are believers.