Is it a sin to fast when one is junub?

I was junub and performed fasting? Is it appropriate?

Dear Brother / Sister,

It is permissible to start fasting in the state of janabah (when one is junub); it does not invalidate fasting. However, it is not permissible to remain in the state of janabah long enough to cause a daily fard prayer to miss; therefore, it is necessary to make ghusl.

Mouth is also washed while making ghusl. One should wash his mouth in a way that will prevent water from going down the throat. Gargling is not necessary.

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