ANSWER:

It’s not permissible to lie or cheat. Would you like others to do the same to you when you buy your own car? 

https://islamqa.info/en/answers/117066/it-is-haraam-to-sell-an-item-without-pointing-out-its-faults-even-if-he-is-selling-it-to-a-kaafir

Sheikh finds it very difficult to sell my car which got accident recently. Every buyers enquire whether there is any replacement or accident . Speaking truth i cannot sell my car. Its been 7 months i am trying to sell it. I try my best not to lie and dodge questions but this creates doubts in minds of the buyers. What to do sheikh? I want to sell it without giving it to a dealer.

Character and Morals, Halal/Haram Matters | August 3, 2022 6:22 am
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Sheikh if someone brings there phone and uses it during the call of nature and he watches YouTube to distract one self and what happens if a short video comes up and someone reciting Quran and listen to it by accident when scrolling down and closes his phone immediately is that person a kafir and has he committed kufur and must take the shaddat.
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If I someone angers me I don’t talk bad about them in front of others.Instead I go someplace where no one else is around,then talk to myself and curse them using swear words distinctively to relieve my anger.Am I still sinful? Is it still considered as backbiting?