Sayyidina Ibn Umar reported that the Prophet (SAW) said, ‘If anyone sets free his share in a slave and he has enough property that is equal to the market price of the slave then that slave is free, otherwise only to the extent of his share.” Sometimes Njafi narrated this hadith with the word (that is). The narrator was unsure what word the Prophet (SAW) used, but the meaning is nearly the same, ‘share.
[Bukhari 2524, Muslim 1501, AD3941, Ibn e Majah 2528, Ahmed 5927]