حَدَّثَنَا حَفْصُ بْنُ عُمَرَ، قَالَ حَدَّثَنَا خَالِدُ بْنُ عَبْدِ اللَّهِ، عَنْ حُصَيْنٍ، عَنْ أَبِي وَائِلٍ، عَنْ حُذَيْفَةَ ـ رضى الله عنه ـ أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ إِذَا قَامَ لِلتَّهَجُّدِ مِنَ اللَّيْلِ يَشُوصُ فَاهُ بِالسِّوَاكِ.
Narrated Hudhaifa:
Whenever the Prophet (ﷺ) got up for Tahajjud prayer he used to clean his mouth (and teeth) with Siwak.
Reference: Sahih al-Bukhari 1136 In-book : Book 19, Hadith 17 USC-MSA web (English) : Vol. 2, Book 21, Hadith 237 (deprecated)
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