Answered by Shaykh Faraz Rabbani
Aslaamualiakum, I missed 2 Ramandan months because I was pregent both year, and had some health problem while i was pregent. can you tell me what I need to do for that time that i missed. Do I need to fast for two months or can I pay money for the time that I missed.

Walaikum assalam wa rahmatullah,
I pray that this finds you well, and in the best of health and spirits. May Allah grant you all good and success in this life and the next.
By clear texts of the Qur’an and Sunna, and consensus of the scholars, it would be obligatory to make up those missed fasts–gradually, without undergoing hardship. There is no expiatory money due upon you.
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And Allah alone gives success.
Faraz Rabbani