At one time when the Buddha was staying at Sāvatthī in Anāthapiṇḍika’s Monastery, a nun had gone to the village for alms without wearing her chest wrap. While she was walking along a street, a whirlwind lifted up her upper robes. People shouted out, “She has beautiful breasts and belly!” Because she was teased by those people, she felt humiliated. After returning to the nunnery, she told the nuns what had happened. The nuns of few desires complained and criticized her, “How could a nun enter an inhabited area without wearing her chest wrap?” … “Is it true, monks, that a nun did this?” “It’s true, sir.” The Buddha rebuked her … “How could a nun do this? This will affect people’s confidence …” … “And, monks, the nuns should recite this training rule like this:

Final ruling ‘If a nun enters an inhabited area without wearing her chest wrap, she commits an offense entailing confession.’”

Definitions A: whoever … Nun: … The nun who has been given the full ordination in unanimity by both Sanghas through a legal procedure consisting of one motion and three announcements that is irreversible and fit to stand—this sort of nun is meant in this case. Without wearing her chest wrap: not wearing her chest wrap.