[Machine] I heard the Messenger of Allah ﷺ saying, "If it were not difficult for my ummah (community), I would have commanded them to use the siwak (tooth-stick) before every prayer." Abu Salamah said, "I saw Zaid sitting in the masjid, and the siwak was at the place of the pen from the ear of the scribe. Whenever he stood up for prayer, he would use it." Al-Bukhari narrated to me that he used to say that the Hadith of Abu Salamah from Zaid bin Khaled is the most authentic. Abu Isa at-Tirmidhi said, "I consider both of them (the narrators) to be authentic." The Sheikh said, "And the last part of this Hadith has been transmitted from Muhammad bin Ishaq bin Yasir with a chain of narrators from him."  

سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ لَوْلَا أَنْ أَشُقَّ عَلَى أُمَّتِي لَأَمَرْتُهُمْ بِالسِّوَاكِ عِنْدَ كُلِّ صَلَاةٍ قَالَ أَبُو سَلَمَةَ فَرَأَيْتُ زَيْدًا يَجْلِسُ فِي الْمَسْجِدِ وَإِنَّ السِّوَاكَ مِنْ أُذُنِهِ مَوْضِعَ الْقَلَمِ مِنْ أُذُنِ الْكَاتِبِ فَكُلَّمَا قَامَ إِلَى الصَّلَاةِ اسْتَاكَ وَبَلَغَنِي عَنِ الْبُخَارِيِّ أَنَّهُ كَانَ يَقُولُ حَدِيثُ أَبِي سَلَمَةَ عَنْ زَيْدِ بْنِ خَالِدٍ أَصَحُّ قَالَ أَبُو عِيسَى التِّرْمِذِيُّ كِلَاهُمَا عِنْدِي صَحِيحٌ قَالَ الشَّيْخُ وَقَدْ وَقَعَ آخِرٌ هَذَا الْحَدِيثِ عَنْ مُحَمَّدِ بْنِ إِسْحَاقَ بْنِ يَسَارٍ بِإِسْنَادٍ لَهُ آخَرَ