Al A'raf, 85 Ayah
7:85
وَإِلَىٰ مَدۡيَنَ أَخَاهُمۡ شُعَيۡبٗاۚ قَالَ يَٰقَوۡمِ ٱعۡبُدُواْ ٱللَّهَ مَا لَكُم مِّنۡ إِلَٰهٍ غَيۡرُهُۥۖ قَدۡ جَآءَتۡكُم بَيِّنَةٞ مِّن رَّبِّكُمۡۖ فَأَوۡفُواْ ٱلۡكَيۡلَ وَٱلۡمِيزَانَ وَلَا تَبۡخَسُواْ ٱلنَّاسَ أَشۡيَآءَهُمۡ وَلَا تُفۡسِدُواْ فِي ٱلۡأَرۡضِ بَعۡدَ إِصۡلَٰحِهَاۚ ذَٰلِكُمۡ خَيۡرٞ لَّكُمۡ إِن كُنتُم مُّؤۡمِنِينَ ٨٥
Wa 'Ilá Madyana 'Akhāhum Shu`aybāan ۗ Qāla Yā Qawmi A`budū Al-Laha Mā Lakum Min 'Ilahin Ghayruhu ۖ Qad Jā'atkum Bayyinatun Min Rabbikum ۖ Fa'awfū Al-Kayla Wa Al-Mīzāna Wa Lā Tabkhasū An-Nāsa 'Ashyā 'Ahum Wa Lā Tufsidū Fī Al-'Arđi Ba`da ۚ 'Işlāĥihā Dhālikum Khayrun Lakum 'In Kuntum Mu'uminīna
And to [the people of] Madyan [We sent] their brother Shu'ayb. He said, "O my people, worship Allah ; you have no deity other than Him. There has come to you clear evidence from your Lord. So fulfill the measure and weight and do not deprive people of their due and cause not corruption upon the earth after its reformation. That is better for you, if you should be believers.