'Abdullah bin Sa'eed narrated that his grandfather said:
"Iheard AbuHurairah say: The Messenger of Allah (ﷺ) said: 'Eat(olive) oil andanoint yourselves with it, for it is blessed.'" (IT)
English reference (IT): Vol. 4, Book 29, Hadith 3320 (IT)
Arabic reference (IT): Book 29, Hadith 3445 (IT)