@aff 88 , I am now confused . What I get is that you and your wife both were in USA on a B visa ( visitor for business or pleasure ); you had a child who was born in the USA; Child has US citizenship ( Passport + SSN ); all of you live abroad.
In my opinion:
(a) Since you ( Non-Resident Alien ) do not have any income from the USA, there is no requirement for you to file a US return;
(b) Because the child is US citizen , a minor ,with ZERO world income, there is no requirement for the child to file a return .
(c) you as a Non-Resident Alien are not eligible for any child related credits because you have no income that is US sourced / connected.
You can always visit the IRS section of the US consulate in Qatar -- they will help you .
Good Luck
