Explanation

Angel Jibril (Gabriel) is referred to as "Rooh ul Ameen" 

Hazrat Jibrail عَلَيْهِ ٱلسَّلَامُ is the Angel of Allah Almighty who used to bring down revelations to the prophet

The Holy Qurn mentions Hazrat Jibreel (AS) by name only three times.

He is the chief angel.