I have been working in the finance committee of our batch for our graduation ceremony for a year now. The students, which mostly consist of disbelievers, decided that they are going to have a music festival to raise money for this ceremony. Is it permissible for me to manage their money at the festival at the gate without entering? And would I be sinning if I continue to manage their money and keep their deposits as a trust for them? I will not be attending the graduation ceremony because it involves haram money.

All perfect praise be to Allah, The Lord of the worlds. I testify that there is none worthy of worship except Allah and that Muhammad, sallallahu ‘alayhi wa sallam, is His slave and Messenger.

It is impermissible to work in the finance committee of this festival and raise money through it, even by standing at the gate without entering, because it falls under cooperation in sin. Allah, The Exalted, says (what means): {And cooperate in righteousness and piety, but do not cooperate in sin and aggression. And fear Allah; indeed, Allah is severe in penalty.} [Quran 5:2]

Allah knows best.