Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
The dyer in a dream is a hypocritical man who adorns falsehood. Dyeing clothes indicates falling into strife.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
The dyer indicates a man who brings joy to people and removes their worries. Red dye is joy, and yellow is illness.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
The dyer is interpreted as a man who embellishes matters. Whoever sees himself dye a garment will fall into a matter by which he becomes known.