ANSWER:

No problem whatsoever in selling computers! 

By your logic, one must not sell water as people MIGHT make ice cubes out of it and use it in drinking wine!

I live in India. Is it permissible for me to sell computers because computer can be used for various good things and bad things? It is highly likely that my customers who are kaffirs will used computer for something haraam at one or another point of their life even if they don’t explicitly say that.

Halal/Haram Matters, Jobs | July 7, 2020 6:23 am
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Ya Shaikh, what type of videos can we allow for kids to watch. What type videos do your grand kids watch, pls suggest. Most of it has music and cartoon characters!
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Honourable sheikh are non Muslims allowed to enter madinah. I have seen some non Muslim youtubers entering madinah. I don’t know more about those videos. I’ve also heard that non Muslims are not allowed to enter haram area. Some people tell that in madinah only the masjid is haram and outside the masjid non Muslims can enter. What is the reality