He did ghusl just to be clean, and he did not realize that he was junub. Should he repeat his ghusl?

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Check below answers in case you are looking for other related questions:
The rest of the maniy comes out after ghusl; is it necessary to do ghusl again?
Is it essential when doing ghusl for janaabah to wash with soap?

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Related Answers:
It is too difficult for her to do ghusl from janaabah so she does not pray, then she repents, then she does that again.
Reciting adhkaar when one is junub
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The rest of the maniy comes out after ghusl; is it necessary to do ghusl again?
Is it essential when doing ghusl for janaabah to wash with soap?

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