Authentic
graded by Al-Albani
Mishkat al-Masabih 388
Narrator:Ā’ishah
وَعَنْ عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا قَالَتْ: كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَسْتَنُّ وَعِنْدَهُ رَجُلَانِ أَحَدُهُمَا أَكْبَرُ مِنَ الْآخَرِ فَأُوحِيَ إِلَيْهِ فِي فَضْلِ السِّوَاكِ أَنْ كَبِّرْ أَعْطِ السِّوَاك أكبرهما. رَوَاهُ أَبُو دَاوُد
‘A'isha said that God’s messenger was using the tooth-stick when two men, one older than the other, were with him. A revelation came to him about the excellence of the tooth-stick in which he was told to show proper respect, and give it to the older of the two. Abu Dawud transmitted it.
Reported by Abu Dawud (No. 50). Cited in Mishkat al-Masabih (No. 388).