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"'. (ID)
English reference (ID): Book 25, Hadith 149 (ID)
Arabic reference (ID): Book 26, Hadith 157 (ID)