[Machine] The Messenger of Allah ﷺ said, "If it were not difficult for my ummah, I would have commanded them to use the siwak (tooth stick) with every ablution." This was narrated to us in Al-Fawaid 147. Abu Zakaria ibn Abi Ishaq informed us that Ahmad bin Sulaiman al-Faqih narrated to us, and Harith bin Muhammad narrated to us, and Ruha bin Ubada narrated to us, and Malik bin Anas mentioned it as a hadith from the Prophet. This hadith is well-known by Ruha bin Ubada and Bishr bin Umar al-Zahrani, from Malik.  

أَنَّ رَسُولَ اللهِ ﷺ قَالَ لَوْلَا أَنْ أَشُقَّ عَلَى أُمَّتِي لَأَمَرْتُهُمْ بِالسِّوَاكِ مَعَ كُلِّ وُضُوءٍ هَكَذَا أَخْبَرَنَاهُ فِي الْفَوَائِدِ 147 وَقَدْ أنبأ أَبُو زَكَرِيَّا بْنُ أَبِي إِسْحَاقَ أنا أَحْمَدُ بْنُ سُلَيْمَانَ الْفَقِيهُ ثنا الْحَارِثُ بْنُ مُحَمَّدٍ ثنا رَوْحُ بْنُ عُبَادَةَ ثنا مَالِكُ بْنُ أَنَسٍ فَذَكَرَهُ مَرْفُوعًا وَهَذَا الْحَدِيثُ مَعْرُوفٌ بِرَوْحِ بْنِ عُبَادَةَ وَبِشْرِ بْنِ عُمَرَ الزَّهْرَانِيِّ عَنْ مَالِكٍ