The mukatab slave: does his master pay it on his behalf or not?

Nafi' said: Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) had two mukatab slaves (slaves contracted to buy their freedom), and he would not pay Sadaqat al-Fitr for them.

It is narrated from Amr that al-Hasan held that paying Sadaqat al-Fitr for the mukatab was required.

Ja'far bin Burqan said: It has reached me that Maymun used to pay Sadaqat al-Fitr on behalf of the mukatab.

Ata said: If the mukatab has paid it on his own behalf, he has sufficed for himself; and if he has not paid it on his own behalf, then his master shall pay Sadaqat al-Fitr on his behalf.

Nafi' said: Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) did not consider Sadaqat al-Fitr due on the mukatab.