Sunan Ibn Majah, Book 29, Hadith 3445 (In-Book) ⓘ
‘Abdullah bin Sa’eed narrated that his grandfather said: “I heard Abu Hurairah say: The Messenger of Allah said: ‘Eat (olive) oil and anoint yourselves with it, for it is blessed.’”
حَدَّثَنَا عُقْبَةُ بْنُ مُكْرَمٍ، حَدَّثَنَا صَفْوَانُ بْنُ عِيسَى، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ سَعِيدٍ، عَنْ جَدِّهِ، قَالَ سَمِعْتُ أَبَا هُرَيْرَةَ، يَقُولُ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " كُلُوا الزَّيْتَ وَادَّهِنُوا بِهِ فَإِنَّهُ مُبَارَكٌ " .
also referenced under: Hadith 3320 (Reference) & Volume 4, Book 29, Hadith 3320 (DarusSalam)