Source: The Great Interpretation of Dreams (Ibn Sirin)
Breaking a branch in a dream indicates the death of a child, brother, or relative.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
Breaking a branch indicates separation from a partner or friend.
Source: Signs in the Science of Expressions (Ibn Shaheen)
Breaking a branch is interpreted as worry and calamity concerning a child.