觀無量壽佛經疏 2.71

2.71

答曰：「夫人乃是貴中之貴，尊中之尊，身四威儀，多人供給，所著衣服，皆使傍人。今既見佛，恥愧情深，不依鉤帶，頓自掣却，故云自絕也。」

Answer: The consort was the noblest of the noble, the most exalted of the exalted; in her four bodily postures, many people served her, and the clothes she wore were all put on by attendants. Now having seen the Buddha, she felt deep shame and remorse; rather than untying the clasps and ribbons, she suddenly wrenched them off herself. Hence it is said that she "tore them off herself."