ANSWER:

No problem in that. 

By your logic, it is prohibited to sell water because someone might make it into ice cubes and drink it with whiskey. 

Can I sell Public Speaking course? I’m afraid that it can be used by non-Muslim politicians to influence the masses. Please assume that this is the best course in this world which also deals with the issue of power and influence.

Halal/Haram Matters, Jobs | September 1, 2019 12:29 pm
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Please I want to perform Hajj & Umrah so badly to help soften my heart. I can afford it but I learnt a woman cant travel alone. Moreover,I am in a distance marriage. I live in US & my husband in Africa. He intend to do hajj next year. Can we both meet in Mecca?
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It’s really hard these days to finance further education. If parents are short of funds, students are forced to take student loans which they can pay after completing their education. What can one do to avoid interest in such loans?