عن شريح بن هانىء قال قلت لعائشة رضي الله عنها بأي شيء كان يبدأ النبي صلى الله عليه وسلم إذا دخل بيته قالت بالسواك رواه مسلم وغيره (الترغيب والترهيب 1/228)
Hazrat Shurayh bin Haani (rahimahullah) reports that he asked Hazrat Aaisha (Radhiyallahu Anha), “When Rasulullah (sallallahu ‘alaihi wasallam) would enter the home, what would he do?” Hazrat Aaisha (Radhiyallahu Anha) replied, “When Rasulullah (sallallahu ‘alaihi wasallam) entered the home, he commenced with making miswaak.”
Note: From this Hadith, we learn the mubaarak sunnah of miswaak. Rasulullah (sallallahu ‘alaihi wasallam) was the most perfect and purest of Allah Ta‘ala’s servants. Through his sublime teachings and mubaarak actions, he taught the ummah lessons of oral and physical hygiene. Similarly, he imparted through his mubaarak sunnah the manner in which a believer should lead a pure life, while fulfilling the commands of Allah Ta‘ala and the creation.