Source: The Great Interpretation of Dreams (Ibn Sirin)
Ink in a dream indicates a child, sustenance, and benefit. Writing with it indicates completing a matter. Spilling it indicates loss of money.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
Ink indicates knowledge and wisdom. Whoever sees himself drinking ink will gain knowledge.
Source: Signs in the Science of Expressions (Ibn Shaheen)
Ink is interpreted as goodness and blessing. Whoever sees his garment stained with it will gain fame.