瑜伽論記 17.140

17.140

測云：有人欲殺他以呪呪鬼令鬼殺他尸將令尸殺眾生，故名為尸。或將尸手足等殺有情，故名半尸。

Ce says: someone wishing to kill another incants a ghost with spells, causing the ghost to kill another's corpse, taking the corpse and causing it to kill sentient beings; hence it is called a 'corpse.' Or using the hands and feet of a corpse to kill sentient beings, it is called a 'half-corpse.'