Sura al-Nisāʾ 4:135

يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ كُونُوا۟ قَوَّٰمِينَ بِٱلْقِسْطِ شُهَدَآءَ لِلَّـهِ وَلَوْ عَلَىٰٓ أَنفُسِكُمْ أَوِ ٱلْوَٰلِدَيْنِ وَٱلْأَقْرَبِينَ إِن يَكُنْ غَنِيًّا أَوْ فَقِيرًا فَٱللَّـهُ أَوْلَىٰ بِهِمَا فَلَا تَتَّبِعُوا۟ ٱلْهَوَىٰٓ أَن تَعْدِلُوا۟ وَإِن تَلْوُۥٓا۟ أَوْ تُعْرِضُوا۟ فَإِنَّ ٱللَّـهَ كَانَ بِمَا تَعْمَلُونَ خَبِيرًا

yā-ayyuhā lladhīna āmanū kūnū qawwāmīna bil-qisṭi shuhadāʾa lillāhi wa-law ʿala anfusikum awi l-wālidayni wa-l-aqrabīna in yakun ghaniyyan aw faqīran fallāhu awlā bihimā fa-lā tattabiʿū l-hawā an taʿdilū wa-in talwu aw tuʿriḍū fa-inna allāha kāna bi-mā taʿmalūna khabīran

O ye who believe! stand out firmly for justice, as witnesses to Allah, even as against yourselves, or your parents, or your kin, and whether it be (against) rich or poor: for Allah can best protect both. Follow not the lusts (of your hearts), lest ye swerve, and if ye distort (justice) or decline to do justice, verily Allah is well-acquainted with all that ye do.