Sura Hūd 11:84

وَإِلَىٰ مَدْيَنَ أَخَاهُمْ شُعَيْبًا قَالَ يَٰقَوْمِ ٱعْبُدُوا۟ ٱللَّـهَ مَا لَكُم مِّنْ إِلَٰهٍ غَيْرُهُۥ وَلَا تَنقُصُوا۟ ٱلْمِكْيَالَ وَٱلْمِيزَانَ إِنِّىٓ أَرَىٰكُم بِخَيْرٍ وَإِنِّىٓ أَخَافُ عَلَيْكُمْ عَذَابَ يَوْمٍ مُّحِيطٍ

wa-ilā madyana akhāhum shuʿayban qalā yā-qawmi iʿbudū allāha mā la-kum min ilāhin ghayruhu wa-lā tanquṣū l-mikyāla wa-l-mīzāna innī arākum bi-khayrin wainnī akhāfu ʿalaykum ʿadhāba yawmin muḥīṭin

To the Madyan People (We sent) Shu'aib, one of their own brethren: he said: "O my people! worship Allah: Ye have no other god but Him. And give not short measure or weight: I see you in prosperity, but I fear for you the penalty of a day that will compass (you) all round.