The Messenger of Allah ﷺ said, "Eat olive oil and apply it to your skin, for it is blessed."
حدثنا عقبة بن مكرم حدثنا صفوان بن عيسى حدثنا عبد الله بن سعيد عن جده قال سمعت
قال رسول الله ﷺ كلوا الزيت وادهنوا به فإنه مبارك
Its chain of transmission is very daif.It was recorded by Hakim, 2/398, from the hadith of Safwan through him, and he graded it sahih, but Dhahabi rejected this, saying, "Abdullah is weak."Busiri said, "This chain is daif because Abdullah bin Saeed Maqburi is weak." See hadith 260.