Source: The Great Interpretation of Dreams (Ibn Sirin)
A son in a dream indicates a weak enemy or worry. If he is young, it is worry; if he is grown, it is strength and support.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
A son indicates sustenance and money. His death indicates salvation from an enemy.
Source: Signs in the Science of Expressions (Ibn Shaheen)
A son is interpreted as worry. Whoever sees that he has a son will be afflicted with worry.