Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
The hazelnut in a dream is a rich, generous man, but difficult to deal with. Eating it indicates gaining lawful money with fatigue.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
The hazelnut indicates collected wealth. Its shell indicates worry and grief.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
The hazelnut is interpreted as wealth. Whoever sees himself eat it will gain wealth.