說無垢稱經疏 4.51

4.51

贊曰：下顯理窮，初徵、後顯。顯中有二：初陳己事、後顯他詞。己事有二：初以疾須乳、後我方乞之。此徵及佛疾當用乳也。現小疾者，佛患背痛，時亦有之，乳和畢鉢，可以為療。

Commentary: Below reveals the exhaustion of principle: first inquiring, then revealing. Within revealing, there are two parts: first stating one's own affairs, then revealing the other's words. One's own affairs has two parts: first that due to illness milk was needed, then that I was just begging for it. This is the inquiry and that the Buddha's illness required milk. Manifesting a slight illness: the Buddha suffered from back pain, which occurred occasionally; mixing milk with long pepper could cure it.