Footage depicts captured Iranian men being held by rebels after they were abducted on the airport road in Damascus on 4 August. Iran claims the men are pilgrims while the rebels claim they are members of the Revololutinary Guard.
The rebels often abduct civilians and falsely claim that they are 'shabiha' so these prisoners could certainly be pilgrims. Although I don't have enough information to verify their identity with complete certainty it seems very unlikely that IRGC would travel unarmed in the middle of a war zone. The fact that many of these men seem quite advanced in age adds further doubt to the insurgent assertion that they are combattants.Courtesy-3TimeToFightBack