Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
A waterskin in a dream is a servant, a brother, or a friend who guards wealth. Its fullness indicates wealth, and its emptiness indicates poverty.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
A waterskin indicates travel. Drinking from it indicates receiving good during travel.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
A waterskin is interpreted as a woman. Whoever sees it tear will separate from his wife.