Musannaf Ibn Abi Shaybah 29017 — A slave who wounds a slave

It is narrated from Abd al-Aziz bin Umar that it is recorded in a document of Umar bin Abd al-Aziz, transmitted from Sayyiduna Umar bin al-Khattab (may Allah be pleased with him), that retaliation shall be taken from a slave for a slave in a deliberate act that reaches his life and in what is less than that.