說無垢稱經疏 4.476

4.476

贊曰：此喻說也。長者喻佛，居士喻菩薩，一子喻眾生，憐愛喻大悲，歡喜喻慶悅，不捨喻攝受。故亦隨子若病若愈。

Commentary: This is the exposition by analogy. The elder symbolizes the Buddha; the householder symbolizes the bodhisattva; the only child symbolizes sentient beings; pity and love symbolize great compassion; joy symbolizes gladness; not relinquishing symbolizes taking into care. Therefore, he likewise follows the child in whether being ill or being cured.