Musannaf Ibn Abi Shaybah 32932 — A man whose bequest includes freeing

Hajjaj narrated that al-Sha'bi said concerning a man who at his death left two thousand dirhams and a slave worth one thousand dirhams, having willed five hundred dirhams to be given to a man and having freed the slave: The slave shall be freed, and the rest of the will shall be void.