Time of Making the Intention of Obligatory Fasts in Other Than the Month of Ramadan Fast
Issue No. 1329- If it is obligatory upon a person to observe a specific fast other than that of the holy month of Ramadan, for example, if he has vowed (nadhr) that he would fast on a particular day, and he does not make an intention purposely till the fajr adhān, his fast would be void, but if he forgets and remembers it before ẓuhr, he can make the intention of that fast.