What is the ruling on praying behind those who were freed by the rulers and are not among their original associates after the Fatih Revolution?

If it is established that the Imam is a slave, there is no harm in that. Aishah (may Allah be pleased with her) led her freed slave in prayer. Al-Hasan (definition) and Ibn Sirin permitted the imamate of a slave. Al-Ruhaibani al-Hanbali mentioned that the imamate of a slave or a partially freed slave is not disliked if either of them is a mosque imam or a householder. He cited as evidence that Ibn Masud, Hudhayfah, and Abu Dharr prayed behind Abu Said, the mawla of Abu Usayd, who was a slave. The imamate of a slave for other slaves and free people is not disliked according to the majority of scholars, though a free person is more preferable. As for Friday prayer, the imamate of a slave is not valid in it according to some scholars, such as the Hanbalis and Malikis. However, Abu Hanifah and Al-Shafii said that it is permissible for a slave to be an imam in it.