Cain dream meaning is explained below using 3 different sources. Each interpretation is shown with its source.

Interpretation 1 — Ibn Seerin

(Murderer) Cain, the oldest son of Adam and Eve, who killed his brother Abel. Seeing him in a dream means concealing a murder.

If one who is not a murderer sees Cain in a dream, it means that he will be involved in something which he will regret terribly.

Source: Islamic Dream Interpretation Author: Ibn Seerin

Interpretation 2 — Stephen Girard

To dream of this first-born son of man, who was Adam's eldest son, is a very unfavorable omen. After such a dream, let the dreamer travel into another part of the country and form new connections.
Source: The Mystic Dream Book Author: Stephen Girard

Interpretation 3 — Internet Archive - Anonymous

An unusual dream, distinctly warning the dreamer to retrace his footsteps and tread a different path.
Source: Mystic Dream Book Author: Internet Archive - Anonymous