Imam Maalik مالك بن أنس بن مالك بن أبي عامر · The Book of Manumission of Slaves

The tradition mentioned above by Rawh b. 'Ubadah from Sa'id b. Abu 'Arubah. In this version he did not mention the words "the slave should be required to work." If has also been transmitted by Jarir b. Hazim and Musa b. Khalaf from Qatadah through the chain of Yazid b. Zurai' and to the same effect. In this version they mentioned the words "the slave should be required to work"