10. Ahmad ibn Muhammad has narrated from ibn Mahbub from ‘Amr ibn abu al-Miqdam from Muhammad ibn Marwan who has said the following
“Abu Ja‘far (a.s.), has said that it is in the will of the Messenger of Allah, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, to ’Amir al- Mu’minin that says, ‘You must brush your teeth for every Salat (prayer).”’