“O you 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 you swerve, and if you distort justice or decline to do justice, verily Allah is well-acquainted with all that you do.”
(The Holy Quran, Chapter 4. “The Women”, verse 135).