Follow the wives…. (iirc, this has been looked at before but no sense in not refreshing)

https://www.dhakatribune.com/world/middle-east/2017/11/11/saudi-princess-unveils-kingdoms-dark-side/

Saudi Princess Amira Bint Aidan Bin Nayef went on a rampage against the ruling Saudi regime in her exclusive statements to the French newspaper Le Monde, saying slavery in Saudi Arabia has different forms, but it is done in secrecy and permitted only among the primary beneficiaries of the princes of the House of Saud.

She mentioned one of the most repulsive things: buying and renting the children, especially the orphans, from countries like Bangladesh, Sri Lanka, the Philippines, Djibouti, Somalia, Nigeria, Romania and Bulgaria.

https://www.idyllicliving.com/alwaleed-bin-talal.html