The Sufficient (Vol 4) · Hadith 428 (#Ḥadīth #1)
Chapter 31 | A Fasting Person’s Use of Tooth Brush
1ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ عَلِيِّ بْنِ الْحَكَمِ عَنِ الْحُسَيْنِ بْنِ أَبِي الْعَلاءِ قَالَ سَأَلْتُ أَبَا عَبْدِ الله (عَلَيْهِ السَّلاَم) عَنِ السِّوَاكِ لِلصَّائِمِ فَقَالَ نَعَمْ يَسْتَاكُ أَيَّ النَّهَارِ شَاءَ.
1. A number of our people have narrated from Ahmad ibn Muhammad from Ali ibn al-Hakam from al-Husayn ibn abu al-‘Ala’ who has said the following: “I once asked abu ‘ Abd Allah , about a man who brushes his teeth when fasting. He (the Imam) said, ‘Yes, he can brush his teeth any time during the day.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).