Ash-Shu'ara 26:184

أَوْفُوا الْكَيْلَ وَلَا تَكُونُوا مِنَ الْمُخْسِرِينَ

Give full measure and do not be of those who cause loss.

وَزِنُوا بِالْقِسْطَاسِ الْمُسْتَقِيمِ

And weigh with an even balance.

وَلَا تَبْخَسُوا النَّاسَ أَشْيَاءَهُمْ وَلَا تَعْثَوْا فِي الْأَرْضِ مُفْسِدِينَ

And do not deprive people of their due and do not commit abuse on earth, spreading corruption.

قَالُوا إِنَّمَا أَنتَ مِنَ الْمُسَحَّرِينَ

They said, "You are only of those affected by magic.

وَمَا أَنتَ إِلَّا بَشَرٌ مِّثْلُنَا وَإِن نَّظُنُّكَ لَمِنَ الْكَاذِبِينَ

You are but a man like ourselves, and indeed, we think you are among the liars.

فَأَسْقِطْ عَلَيْنَا كِسَفًا مِّنَ السَّمَاءِ إِن كُنتَ مِنَ الصَّادِقِينَ

So cause to fall upon us fragments of the sky, if you should be of the truthful."