Abdullah bin Umar reported,

The Messenger of Allah ﷺ said, "I saw in a dream that I was given a large bowl filled with milk. I drank from it until I was completely satisfied, so much so that I could see it flowing through my veins between my skin and my flesh. Then I had some left over, which I gave to Umar bin Khattab."The companions interpreted the dream, saying, "Prophet of Allah, this is knowledge that Allah has given you. He filled you with it, and what remained you gave to Umar bin Khattab."He said, "You are correct."

Azami 9867

Sahih

عن ابن عمر

أن رسول الله ﷺ قال: رأيت في النوم أني أعطيت عسا مملوءا لبنا، فشربت حتى تملأت حتى رأيته يجري في عروقي بين الجلد واللحم، ففضلت فضلة أعطيتها عمر بن الخطاب، فأولوها، قالوا: يا نبي الله، هذا علم أعطاكه الله فملأك منه، ففضلت فضلة فأعطيتها عمر بن الخطاب، فقال: أصبتم.

الأعظمي 9867صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Virtues of the Companions and reports about them
Chapter
Virtues and reports of Umar bin Khattab
Section
Abundance of knowledge of Umar bin Khattab
Numbering
Jami al-Kamil 9867 (2nd edition)
Azami 9867