Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
bayhaqi:138Abū al-Ḥasan ʿAlī b. Muḥammad b. ʿAlī al-Muqriʾ > al-Ḥasan b. Muḥammad b. Isḥāq > Yūsuf b. Yaʿqūb al-Qāḍī > Muḥammad b. Abū Bakr > Yazīd b. Zurayʿ > ʿAbd al-Raḥman b. Abū ʿAtīq > Abū > ʿĀʾishah

[Machine] The Prophet ﷺ said, "Using the siwak (toothstick) is a means of purification for the mouth and pleasing to the Lord." The Prophet is Muhammad, the son of Abdullah, the son of Abi Atiq, who is related to his grandfather. It is also said that Abdul Rahman narrated this from Qasim ibn Muhammad, as if he heard it from both of them.  

البيهقي:١٣٨أَخْبَرَنَاهُ أَبُو الْحَسَنِ عَلِيُّ بْنُ مُحَمَّدِ بْنِ عَلِيٍّ الْمُقْرِئُ أنا الْحَسَنُ بْنُ مُحَمَّدِ بْنِ إِسْحَاقَ ثنا يُوسُفُ بْنُ يَعْقُوبَ الْقَاضِي ثنا مُحَمَّدُ بْنُ أَبِي بَكْرٍ ثنا يَزِيدُ بْنُ زُرَيْعٍ ثنا عَبْدُ الرَّحْمَنِ بْنُ أَبِي عَتِيقٍ قَالَ سَمِعْتُ أَبِي يُحَدِّثُ أَنَّهُ سَمِعَ عَائِشَةَ ؓ أَنَّ

النَّبِيَّ ﷺ قَالَ السِّوَاكُ مَطْهَرَةٌ لِلْفَمِ مَرْضَاةٌ لِلرَّبِّ عَبْدُ الرَّحْمَنِ هُوَ ابْنُ عَبْدِ اللهِ بْنِ أَبِي عَتِيقٍ نِسْبَةً إِلَى جَدِّهِ وَقِيلَ عَبْدُ الرَّحْمَنِ عَنِ الْقَاسِمِ بْنِ مُحَمَّدٍ فَكَأَنَّهُ سَمِعَهُ مِنْهُمَا جَمِيعًا