Can he observe a fast on behalf of one who is sick during the night in Ramadaan?

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Check below answers in case you are looking for other related questions:
A sick person who cannot fast
He did not fast and he fed the poor because of chronic sickness, then Allah healed him

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Related Answers:
Can he break his fast during the day in Ramadaan because of a medical examination?
Fasting is extremely difficult for her – can she not fast?
Her sickness had no hope of a cure then Allaah healed her
A sick person who cannot fast
He did not fast and he fed the poor because of chronic sickness, then Allah healed him

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