If the country of his origin does not have an embassy in Doha, then he should contact the embassy based in the nearest location from where he is a resident, which means there are some international embassies which does not have a presence in Doha, but have a presence in UAE where all the embassy related docs are processed for the entire middle east region.

He can send a letter to the embassy of nearest location in UAE or any other GCC, where it is located and ask them directly. That is the only way.

If you can tell me the origin of his country, I can try and give you the info about its location.

Hope this info is useful to you.

good luck and regards,