Source: The Great Interpretation of Dreams (Ibn Sirin)
Seeing one's deceased wife in a dream indicates poverty, loss of position, or worry. Seeing her alive indicates the return of a despaired matter.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
Seeing one's deceased wife alive indicates goodness and sustenance coming to the dreamer.
Source: Signs in the Science of Expressions (Ibn Shaheen)
Seeing one's deceased wife is interpreted as worry and poverty.