5:105O you who believe! You are responsible for your own souls. He who has strayed cannot harm you if you are guided. To God is you return, all of you, and He will inform you of what you used to do.

5:107If it is discovered that they are guilty of perjury: let two others take their place, two from among those responsible for the claim, and have them swear by God, “Our testimony is more truthful than their testimony, and we will not be biased, for then we would be wrongdoers.”