ANSWER:

You must not donate to Masjids and islamic institutions that follow innovations and corrupt aqeedah as this would be collaborating and assisting in haram. It is best for you to sponsor an Imam who would revive the sunnah there and ensure that he spreads the correct teachings of Islam. 

I donate my charity in south east asia where everyone practices some kind of bidah. Will i be sinful for donating in making masjid or sponsoring an orphan from there?

Charity, Halal/Haram Matters, Sects | September 2, 2020 7:22 pm
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My friend was telling me that we can go to dargah and when I refused he asked me for reference in Quran and hadeeth that says we should not go to dargah. When I showed him your videos of dargah from YouTube he said you may be unauthentic as many Maulanas and sheikhs are unauthentic. I said him my relative know Quran and hadeeths well and they said to listen to you than too he was not listening.
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If someone gives me a gift or a food when I don’t know if that person’s earnings are halal, is it haraam for me to take that gift or food? And what if someone’s earnings are mixed with halal and haram? And what do I do if the earning is full of haram?