Who says he is a dreamer let us leave him pass in Julius Caesar?

In Shakespeare's play "Julius Caesar," the character who says "He is a dreamer; let us leave him" is Caesar himself. This line is spoken in Act 1, Scene 2, in reference to the soothsayer who warns him to "Beware the Ides of March." Caesar dismisses the soothsayer's warning, highlighting his arrogance and belief in his own invulnerability.