Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
The peacock in a dream is a foreign king or a beautiful, rich woman. Its feathers indicate wealth from a woman. A peahen indicates a beautiful maidservant.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
The peacock indicates adornment and vanity. Whoever owns a peacock will receive good from a beautiful woman.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
The peacock is interpreted as a beautiful woman. Whoever sees himself talking to one will gain authority.