Qadha for Fasts left out due to Travelling or Illness
Issue No. 1429- A person must offer qaḍā for the fasts unperformed, due to travelling, illness, etc.; however, if he does not know the exact number of the unperformed fasts, it will suffice to perform qaḍā for the numbers he is sure he has not performed, and it will not be obligatory to offer qaḍā fast anymore, though it would be better, on the basis of recommended precaution.