Source: The Great Interpretation of Dreams (Ibn Sirin)
The Pool in a dream indicates a scholar, a righteous wife, or a deed by which one draws closer to God. Drinking from it indicates knowledge and faith.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
The Pool indicates salvation from hardships and following the Sunnah.
Source: Signs in the Science of Expressions (Ibn Shaheen)
The Pool is interpreted as goodness and blessing. Whoever sees himself drinking from it will attain goodness.