The Messenger of Allah ﷺ said, "While I was sleeping, I was brought a cup of milk and I drank from it until I could see the quenching flowing out from my limbs. Then I gave what remained to Umar bin Khattab."Those around him asked, "How did you interpret this, Messenger of Allah?"He replied, "Knowledge."
حدثنا يعقوب حدثنا أبي عن صالح قال ابن شهاب حدثني حمزة بن عبد الله بن عمر أنه
قال رسول الله ﷺ بينا أنا نائم أتيت بقدح لبن فشربت منه حتى إني لأرى الري يخرج من أطرافي فأعطيت فضلي عمر بن الخطاب فقال من حوله فما أولت ذلك يا رسول الله قال العلم
Its isnad is sahih, and it is a longer version of 5868.His saying, "comes out," in one manuscript, margin of م, "flows," and this is the original reading in ك, corrected in its margin to "comes out."His saying, "from my extremities," in one manuscript, margin of ك, "from beneath my fingernails."