Uttarajjhayana 16.6

16.6

no itthīṇaṃ kuḍḍaṃtaraṃsi vā, dūsaṃtaraṃsi vā, bhittaṃtaraṃsi vā, kuiyasaddaṃ vā, ruiyasaddaṃ vā, gīyasaddaṃ vā, hasiyasaddaṃ vā, thaṇiyasaddaṃ vā, kaṃdiyasaddaṃ vā, vilaviyasaddaṃ vā, suṇettā havai se niggaṃthe|
taṃ kahamiti ce?
āyariyāha–niggaṃthassa khalu itthīṇaṃ kuḍuṃtaraṃsi vā, dūsataraṃsi vā, bhittaṃtaraṃsi vā, kuiyasaddaṃ vā, ruiyasaddaṃ vā, gīyasaddaṃ vā, hasiyasaddaṃ vā, thaṇiyasaddaṃ vā, kaṃdiyasaddaṃ vā, vilaviyasaddaṃ vā, suṇe-māṇassa baṃbhayārissa baṃbhacere saṃkā vā, kaṃkhā vā, vitigicchā vā samuppajjijjā, bheyaṃ vā labhejjā, ummāyaṃ vā pāuṇijjā, dīhakāliyaṃ vā rogāyaṃkaṃ havejjā, kevalipannattāo vā dhammāo bhaṃsejjā|
tamhā khalu niggaṃthe no itthīṇaṃ kaḍuṃtaraṃsi vā, dūsaṃtaraṃsi vā, bhittaṃtaraṃsi vā, kuiyasaddaṃ vā, ruiyasaddaṃ vā, gīyasaddaṃ vā, hasiyasaddaṃ vā, thaṇiyasaddaṃ vā, kaṃdiyasaddaṃ vā, vilaviyasaddaṃ vā suṇemāṇe viharejjā|

A Nirgrantha does not listen to the sound of cooing, weeping, singing, laughing, groaning, crying, or wailing of women through a wall, screen, or partition.
Why is that?
The ācārya says: If a Nirgrantha practicing celibacy listens to the sound of cooing, weeping, singing, laughing, groaning, crying, or wailing of women through a wall, screen, or partition, there may arise in his celibacy doubt, longing, or uncertainty, or he may suffer a breach, or incur madness, or contract a long-lasting and painful illness, or fall away from the Dharma taught by the omniscient ones.
Therefore, indeed, a Nirgrantha should not live listening to the sound of cooing, weeping, singing, laughing, groaning, crying, or wailing of women through a wall, screen, or partition.