注大乘入楞伽經 3.234

3.234

鹿子，人名也，其母即毘舍佉優婆夷，深重三寶，造立精舍、安止比丘，於中不畜象馬等。象馬無，故言空。

Mṛgāra is a person's name; his mother was the upāsikā Viśākhā, who deeply revered the Three Jewels. She established a monastery to house monks, in which elephants, horses, and the like were not kept. Because elephants and horses are absent, it is said to be empty.