ʿAbdur-Rahman bin Abi Bakr came holding a Siwak with which he was cleaning his teeth. Allah's Apostle looked at him. I requested ʿAbdur-Rahman to give the Siwak to me and after he gave it to me I divided it, chewed it and gave it to Messenger of Allah ﷺ. Then he cleaned his teeth with it and (at that time) he was resting against my chest.  

دَخَلَ عَبْدُ الرَّحْمَنِ بْنُ أَبِي بَكْرٍ وَمَعَهُ سِوَاكٌ يَسْتَنُّ بِهِ فَنَظَرَ إِلَيْهِ رَسُولُ اللَّهِ ﷺ فَقُلْتُ لَهُ أَعْطِنِي هَذَا السِّوَاكَ يَا عَبْدَ الرَّحْمَنِ فَأَعْطَانِيهِ فَقَصَمْتُهُ ثُمَّ مَضَغْتُهُ فَأَعْطَيْتُهُ رَسُولَ اللَّهِ ﷺ فَاسْتَنَّ بِهِ وَهْوَ مُسْتَسْنِدٌ إِلَى صَدْرِي