Source: The Great Interpretation of Dreams (Ibn Sirin)
A broken mirror in a dream indicates separation from the wife or worry and grief.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
Breaking a mirror indicates the death of the wife or a change in her condition for the worse.
Source: Signs in the Science of Expressions (Ibn Shaheen)
Breaking a mirror is interpreted as worry. Whoever sees himself breaking it will be afflicted with worry.