Question: My father is very old and is unable to stand without my help. He was not able to observe Sawm (Fast) in the current Ramadaan. He usually performs Tayammum (dry ablution with clean earth) to offer Salaah (Prayer), as he is not able to perform Wudoo’ (ablution). He offers Salaah either while sitting glorying on his side. What is the ruling on this?
Answer: First, If your father is unable to observe Sawm due to his old age, he should feed one Miskeen (needy person) an amount of about one half a Saa` (1 Saa` = 3 kg. Approx.) of dates, wheat, or similar staple food of the country for each day on which he breaks Sawm… read more here.