Man Lā Yaḥḍuruh al-Faqīh
Hadith 3361907 - وَ فِي خَبَرٍ آخَرَ: «عَلَى اَلصَّبِيِّ إِذَا اِحْتَلَمَ اَلصِّيَامُ وَ عَلَى اَلْمَرْأَةِ إِذَا حَاضَتِ اَلصِّيَامُ ».
Hadith.1907 - In another report:
"A boy is required to fast when he reaches puberty, and a woman is required to fast when she menstruates."