WoW Classic Retrieve all the gear used in the raid

I’m trying to get the gear from everyone in the raid, I’m using this request: https://classic.warcraftlogs.com:443/v1/report/events/summary/4192C8HTgL6vpWZw?api_key=8f902274c58b118cd7afb805c05e8b49
However it is only bringing me the razorgore fight, consequently, it only brings the gear used in this fight. I tried to filter by sourceid and encounterid neither brings the expected result. Maybe if we had the filter for the fight it would solve the problem.
Something like that maybe https://classic.warcraftlogs.com/reports/4192C8HTgL6vpWZw#fight=14&type=summary&source=39