ANSWER:

This is not mandatory.

You can only fast on Saturday alone for arafah.

If the day of Arafah is on Saturday in my country then do I have to fast both Friday and Saturday or I can fast on Saturday only?

Fasting | July 6, 2022 6:57 am
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Shiekh, since the day of Arafat this year is falling on Friday, can we fast just the Friday, or do we have to keep a fast before or after Friday as it not recommended to fast on Fridays alone? Please clarify.