On to the courtyard, then.
"Hi, I'm a cleric of Abadar from entirely outside Golarion, who owes a debt to Abadar that, as I understand it, Abadar wants me to repay by teaching knowledge to Osirion."
"I want to check I'm not going to harm the rest of Golarion by teaching knowledge to Osirion - the way someone would be harming Golarion if they taught knowledge to say Cheliax - and to that end, I'd like to pay several of you one gold piece each, to share your frank political opinions with me. I will have some of that conversation via Message, with each such person, in case any of you have things to say they don't want overheard because of social non-accuracy incentives. I won't pass on those opinions in a way that associates them to you, and have been promised various obvious things by Abadar's Church about nobody else trying to figure out who said them. That's all the gold piece is payment for, and I do not seek anything else from you, nor seek to harm you in any way."