1. My father said: it was narrated to us by Ahmad b. Idris who said it was narrated to me by Muhammad b. Ahmad who said it was narrated to me by Ibrahim b. Ishaq from Muhammad b. Isa from ’Ubayd-Allah al-Dahqan from Durust b. Mansur from Abdillah b. Sinan from Abi Abdillah who said: “There are twelve virtues of doing Miswak – it is the Sunnah of the Holy Prophet (s.a.w.s.), it cleans the mouth, improves eyesight, Allah becomes pleased, teeth are cleansed, teeth are prevented from decay, jaws become stronger, it increases appetite, it removes phlegm, it improves memory, it doubles the good deeds of a person and angels become happy.”