The Sufficient (Vol 4) · Hadith 403 (#Ḥadīth #5)
Chapter 25 | The Undesirability of Immersing One’s Head in Water while Fasting
5ـ مُحَمَّدُ بْنُ يَحْيَى وَغَيْرُهُ عَنْ مُحَمَّدِ بْنِ أَحْمَدَ عَنِ السَّيَّارِيِّ عَنْ مُحَمَّدِ بْنِ عَلِيٍّ الْهَمَذَانِيِّ عَنْ حَنَانِ بْنِ سَدِيرٍ قَالَ سَأَلْتُ أَبَا عَبْدِ الله (عَلَيْهِ السَّلاَم) عَنِ الصَّائِمِ يَسْتَنْقِعُ فِي الْمَاءِ قَالَ لا بَأْسَ وَلَكِنْ لا يَنْغَمِسُ فِيهِ وَالْمَرْأَةُ لا تَسْتَنْقِعُ فِي الْمَاءِ لأَنَّهَا تَحْمِلُ الْمَاءَ بِفَرْجِهَا.
5. Muhammad ibn Yahya and others has narrated from Muhammad ibn Ahmad from al-Sayyariy from Muhammad ibn Ali al- Hamadaniy from Hanan ibn Sadir who has said the following: “I once asked abu ‘Abd Allah , about a man who stays in water when he is fasting. He (the Imam) said, ‘It is not harmful, but he must not immerse himself in it and a woman must not stay in water, because she carries water in her urethra.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).