Time of Making the Intention for an Unspecified Obligatory Fast
Issue No. 1330- If a person has an unspecified obligatory fast [1] upon him to perform (e.g., the qaḍā fast of the Holy month of Ramadan or a fast for atonement), the time to make the intention for it is until ẓuhr, meaning, if he has not committed any fast invalidators and makes the intention before ẓuhr, his fast is correct.