Source: The Great Interpretation of Dreams (Ibn Sirin)
Miscarriage (falling fetus) in a dream indicates worry, grief, and hardship that quickly disappears.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
Miscarriage indicates bad words coming from the dreamer.
Source: Signs in the Science of Expressions (Ibn Shaheen)
Miscarriage is interpreted as worry. Whoever sees his wife miscarrying will be afflicted with worry.