The girl went to a private place and began to make preparations so that the unexpected male guests could eat. As she was beating the rice, the conchshell bracelets on her arms were colliding and making a loud noise.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तेषामभ्यवहारार्थं शालीन् रहसि पार्थिव । अवघ्नन्त्याः प्रकोष्ठस्थाश्चक्रुः शङ्खाः स्वनं महत्
teṣāmabhyavahārārthaṃ śālīn rahasi pārthiva | avaghnantyāḥ prakoṣṭhasthāścakruḥ śaṅkhāḥ svanaṃ mahat
SB 11.9.6