2. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from Muhammad ibn Khalid and al-Husayn ibn Sa‘id all from al-Qasim ibn ‘Urwah from Ishaq ibn ‘Ammar who has said the following:

“Abu ‘Abd Allah , has said, ‘Brushing one’s teeth is of the Sunnah and moral discipline of the prophets.’”