楞伽阿跋多羅寶經註解 1.75

1.75

問能破諸有，出三界，是何佛子。《入楞伽》云：「云何有佛子，而能破三有？」

This asks what kind of Buddha-son is able to destroy the realms of existence and escape the three realms. The Entry into Laṅkā says: "How is there a son of the Buddha / Who is able to destroy the three realms of existence?"