Fasting: Not Specifying Which Ramadan a Qadaʾ Fast Belongs To
Practical Laws of Islam as per the teachings of Ayatullah Sistani
Ruling 1668
If a person has to keep qaḍāʾ fasts for a number of Ramadans and he does not specify in his intention which month of Ramadan he is keeping a qaḍāʾ fast for, it will not be regarded as the qaḍāʾ fast for the last year; as a result, the kaffārah for delaying its qaḍāʾ would not be waived.[1]
-Ayatullah Sistani, Practical Laws of Islam, Fasting (Sawm)
1
See Ruling 1678