سورة An-Nisa ( The Women ) - الآية 135

Believers, be strict in upholding justice and bear witness for the sake of God, even though it be against yourselves, your parents, or your kindred. Be they rich or poor, God knows better about them both. Do not, then, follow your own desires, lest you swerve from justice. If you conceal the truth or evade it, then remember that God is well aware of all that you do.