Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
The turtle in a dream is a knowledgeable, ascetic, pious man. Eating its meat indicates gaining knowledge or wealth from a righteous man. Whoever sees a turtle in his house is mingling with scholars and benefiting from them.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
The turtle indicates a judge or a man who conceals himself with knowledge and avoids doubts. On the road, it indicates neglected knowledge.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
The turtle is interpreted as an adorned, hidden woman. Its presence in a place indicates goodness, fertility, and low prices in that place.