Umar

Seeing Umar in a dream is similarly interpreted as seeing certain prophets.

Taking him by the hand indicates increased faith, insight, discernment and war’a (religious rigor).

If you see him with a scowl on his face, it means you are going to enjoin good and forbid evil.

If you see him happy, it indicates that you are a strong follower of the Sunnah.

To see Umar in an army, equipped with weapons, suggests piety and reliability.

If he sits and speaks softly with the Prophet, it suggests that one is trying to memorize the Koran.
[Abu Taher]

Ibn Sirin said that whoever sees Umar will have a good reputation or a long life filled with virtues.

It can also symbolize honesty, good deeds and fighting against falsehood.

Sometimes it can also mean that you get the honor of making tawaf around the Ka’ba.
[Khalil Shahin]