Source: The Great Interpretation of Dreams (Ibn Sirin)
Cutting the nose in a dream indicates the dreamer's death or a calamity concerning the one indicated by the nose (like the father, son, or prestige).
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
Cutting the nose indicates humiliation, disgrace, and great worry.
Source: Signs in the Science of Expressions (Ibn Shaheen)
Cutting the nose is interpreted as worry and calamity. Whoever sees his nose cut will be afflicted with worry.