وَعَنْهَا قَالَتْ: كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَسْتَاكُ فَيُعْطِينِي السِّوَاكَ لِأَغْسِلَهُ فَأَبْدَأُ بِهِ فَأَسْتَاكُ ثُمَّ أَغْسِلُهُ وَأَدْفَعُهُ إِلَيْهِ
She also said, “The Prophet (sallallahu alayhi wa sallam) was accustomed to use the tooth-stick and then give it to me to wash it. I would first use it myself, then wash it and hand it to him.”
Mishkat al-Masabih 357, Book 4, Purification, Hadith 93. 1 min read