كتب : Omar AbdelAziz
The Egypt striker, who started ahead of marksman Yasser Al-Qahtani, set up Abdul-Aziz Al-Dossari with the only goal of the game five minutes from the break.
Hilal are nine points of closest rivals Ittihad Jeddah, with three rounds remaining until the end of the season.
The Riyadh giants, who clinched the Saudi Crown Prince Cup last week, are unbeaten in 23 league games so far this season.