Musannaf Ibn Abi Shaybah

Hazrat Masruq (may Allah have mercy on him) was asked about a person who freed his slave during his terminal illness and he has no other wealth besides this? He (may Allah be pleased with him) replied: This decision of his will be enforced on the Day of Judgment; I cannot reject what he has freed for the sake of Allah. And Hazrat Shurayh (may Allah have mercy on him) said: It will be enforced on one-third of his wealth, and for the remaining two-thirds, he (the slave) will strive (by giving wealth, he will be freed).