法華經義記 1.60

1.60

「大目揵連」者，亦是外國姓，此方無翻，字𤘽律陀，是樹神名也。其母無兒，恒祠樹神乞子。後得子時，其不達業行，謂言樹神所惠，因此立名但謂𤘽律陀也。既值如來得阿羅漢果，其人神通第一。又與舍利弗至心周旋，要先得道者誓相報語也。「摩訶迦旃延」者，摩訶大也，旃延是姓，既得羅漢，其人論義第一也。

"Mahāmaudgalyāyana" is also a foreign family name, untranslated here. His courtesy name was Kolita, which is the name of a tree deity. His mother had no sons and constantly sacrificed to the tree deity to beg for a child. Later, when she obtained a child, not understanding karmic actions, she thought it was a bestowal of the tree deity, and based on this gave him the name, calling him simply Kolita. After encountering the Tathāgata, he attained the fruit of an arhat; he was foremost in supernatural powers. Furthermore, he was on terms of heartfelt intimacy with Śāriputra, and they made a mutual pact that whoever attained the path first would inform the other. As for "Mahākātyāyana": "mahā" means great, and "Kātyāyana" is the family name. Having attained arhatship, he was foremost in doctrinal debate.