Never heard of this requirement for passports, but what the heck...
Go south on Al-Andulus street towards the US Consulate Jeddah, turn left at the consulate onto Falasteen St. The first intersection is Hail Street where the traffic runs south to north, just on the corner you will find an official translation office, they will translate the document with an official seal. This should be good enough to satisfy any requirements.
Look in Google Earth with Google Maps and my instructions should make sense.
Good Luck
Mutt