And to Madyan [We sent] their brother Shu'ayb. He said, ' O my people, worship A-Quran Verses

11-Surah Hud 84

And to Madyan [We sent] their brother Shu’ayb. He said, ‘ O my people, worship Allah; you have no deity other than Him. And do not decrease from the measure and the scale. Indeed, I see you in prosperity, but indeed, I fear for you the punishment of an all-encompassing Day.

﴿84﴾۞ وَإِلَىٰ مَدْيَنَ أَخَاهُمْ شُعَيْبًا ۚ قَالَ يَا قَوْمِ اعْبُدُوا اللَّهَ مَا لَكُم مِّنْ إِلَٰهٍ غَيْرُهُ ۖ وَلَا تَنقُصُوا الْمِكْيَالَ وَالْمِيزَانَ ۚ إِنِّي أَرَاكُم بِخَيْرٍ وَإِنِّي أَخَافُ عَلَيْكُمْ عَذَابَ يَوْمٍ مُّحِيطٍ

Quran's Tafhim ( explanation)

*94). For details see Towards Understanding the Qur'an, vol. Ill, al-A'raf, nn. 69-75, pp. 53-7.