If your friends wants to host on Airbnb then it is up to him to become familiar with how Airbnb works not you !!
He will need to check the short term rental legislation in your area to see if this is permissible and get specialist insurance for holiday lets. He will need to become familiar with how various platforms work. He will be responsible for vetting guests.
I have long term rentals and would never allow a friend to sub let for Airbnb short term rentals - unless your friend is very diligent you can end up with problem guests who party and upset your neighbours. I presume you have checked your lease to see whether you are allowed to have your apartment used to run a business/have short term rentals?