Man Lā Yaḥḍuruh al-Faqīh
Hadith 10474260 - وَ رَوَى اَلْحَسَنُ بْنُ مَحْبُوبٍ عَنْ وَهْبِ بْنِ عَبْدِ رَبِّهِ قَالَ : رَأَيْتُ أَبَا عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ يَتَخَلَّلُ فَنَظَرْتُ إِلَيْهِ فَقَالَ "إِنَّ رَسُولَ اَللَّهِ صَلَّى اَللَّهُ عَلَيْهِ وَ آلِهِ كَانَ يَتَخَلَّلُ وَ هُوَ يُطَيِّبُ اَلْفَمَ".
Hadith.4260 - Al-Hasan ibn Mahbub narrated from Wahb ibn Abd Rabbih who said: I saw Abu Abdillah (as) using a toothpick, so I looked at him.
Imam (as) said: "Indeed, the Messenger of Allah (swt) (peace be upon him and his family) used a toothpick, and it purifies the mouth."