VII. Remaining in Janabat or Hayz or Nifas till Adhaan for Fajr Prayer
1628. If a person in Janabat does not take Ghusl intentionally, until the time of Adhaan for Fajr prayers, or if he is obliged to perform Tayammum and if he intentionally avoids it, if his fast is of the month of Ramadhan or in its Qadha his
fast will become void. Moreover, in other fasting, it is recommended that one should not remain in the condition of Janabat until Fajr.