Can Muslims testify as a witness in court?

Giving testimony is a duty

The Quran treats witnessing as a serious trust. In the long verse about recording debts it says "the witnesses should not refuse when they are called upon" (Quran 2:282), and the next verse is even stronger:

So if you saw a crash, an assault or a fraud and the court needs you, stepping forward is part of your faith, not a betrayal of anyone. That includes when the person involved is another Muslim. See Can I report a crime by another Muslim to the police?

Truth, even against yourself

The verse goes on to include parents and relatives, rich or poor. Islam doesn't let loyalty or sympathy bend your testimony. The Prophet ﷺ listed false testimony among the greatest sins, and repeated the warning so many times that the Companions wished he would stop (Sahih al-Bukhari 2654).

Oaths and affirmations

Courts in the UK and USA let you swear on a holy book or make a non-religious affirmation. Muslims can swear by Allah on the Quran, or simply affirm; both are fine as long as you are truthful. See Can Muslims swear on the Quran in court?

When you can say no

• Real danger: if testifying would put you in serious danger, talk to the police or court about witness protection. Islam doesn't demand you harm yourself.
• You don't really know: only say what you actually saw or heard. "I don't remember" is honest when it's true.
• Character witness: you can speak for a friend's good character only if you genuinely believe it.

Taking part in a non-Muslim court system to get justice is accepted by most scholars living in the West. See Do I have to follow the laws of my country as a Muslim?