Shama-il Tirmidhi Chapter 025, Hadith Number 007 (149).

Abu Usayd Radiyallahu 'Anhu says. "Rasululah Sallallahu 'Alayhi Wasallam said: 'Use olive oil in eating and for rubbing (on the body), for it is from a mubaarak (blessed) tree"'.

Commentary.
The blessedness of this tree has been mentioned in the Qur-aan in the aayah "... from a blessed tree, an olive neither of the East nor of the West... "- Suralt An Nur, 35. The 'ulama have mentioned different reasons for its blessedness. Some say it is mostly grown in Syria and the earth of Syria is blessed because seventy prophets were sent to it. Some say it is blessed because of its many benefits. Abu Nu'aym says: 'It has a cure for seventy diseases of which one is leprosy'. Sayyidina Ibn 'Abbaas Radiyallahu 'Anhu says: 'Every part of the olive is beneficial. The oil is used for burning and cooking. It is also used for tanning. Its wood is used for firewood. The ash of the olive is -especially good for washing silk'. It is said that the olive tree has a long life. It bears fruit after forty years and has a life span of a thousand years. It's numerous benefits are mentioned in the books of tibb.