A large amount of money came into his account and he spent it all

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Check below answers in case you are looking for other related questions:
Cheating at work to get extra travel expenses
Taking interest and offsetting losses with riba

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Related Answers:
Well-off people taking things that are only for the poor from a kaafir state
You have to return the money to its owners
Ruling on what a photographer earned before he repented
Cheating at work to get extra travel expenses
Taking interest and offsetting losses with riba

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