Surah Al-Mai'dah (The Spread Table), Verse 8

یٰۤاَیُّهَا الَّذِیْنَ اٰمَنُوْا كُوْنُوْا قَوّٰمِیْنَ لِلّٰهِ شُهَدَآءَ بِالْقِسْطِ وَلَا یَجْرِمَنَّكُمْ شَنَاٰنُ قَوْمٍ عَلٰۤی اَلَّا تَعْدِلُوْا اِعْدِلُوْا هُوَ اَقْرَبُ لِلتَّقْوٰی وَاتَّقُوا اللّٰهَ اِنَّ اللّٰهَ خَبِیْرٌ بِمَا تَعْمَلُوْنَ ۟

Yaaa aiyuhal lazeena aamaanoo koonoo qawwaa meena lillaahi shuhadaaa'a bilqist, wa laa yajrimannakum shana aanu qawmin 'alaaa allaa ta'diloo; i'diloo; huwa aqrabu littaqwaa wattaqul laah; innal laaha khabeerum bimaa ta'maloon

“O ye who believe! stand out firmly for Allah, as witnesses to fair dealing, and let not the hatred of others to you make you swerve to wrong and depart from justice. Be just: that is next to piety: and fear Allah. For Allah is well-acquainted with all that ye do.”

Quran 5:8 (Yusuf Ali Translation)