Surah Ar-Rahman, Verse 9

وَأَقِيمُواْ ٱلۡوَزۡنَ بِٱلۡقِسۡطِ وَلَا تُخۡسِرُواْ ٱلۡمِيزَانَ٩

wa-aqīmū l-wazna bil-qis'ṭi walā tukh'sirū l-mīzāna

And establish weight in justice and do not make deficient the balance.