Hadith.3468 - Imam Ali ibn Abi Talib عليه السلام said:
"A mudabbar (a slave promised freedom after the owner's death) is counted as part of the one-third (of the estate). As for any offense committed by the mudabbar, the mukatab (a slave under a contract of emancipation), or the umm al-walad (a bondwoman who bore her master a child), the master is liable for their offenses."