Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
The spear in a dream is a male child, a brother, or travel. Stabbing with it indicates slandering people. Its breaking indicates the death of the son or brother.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
The spear indicates a brave man. Whoever sees a spear in his hand will gain authority or be blessed with a son.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
The spear is interpreted as a son. Whoever sees his spear grow long, his son's life will be long.