'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.'" (ES)
English reference (ES): Vol. 4, Book 29, Hadith 3320 (ES)
Arabic reference (ES): Book 29, Hadith 3445 (ES)