Caitanya-caritāmṛta 17.35
kapāṭa diyā kīrtana kare parama āveśe pāṣaṇḍī hāsite āise, nā pāya praveśe
[kapaata diyaa keertana kare parama aaveshe paashandee haasite aaise, naa paaya praveshe]
Blended reading (Sanskrit + English inline)
kapāṭa diyā kīrtana kare parama āveśe pāṣaṇḍī hāsite āise, nā pāya praveśe
This ecstatic chanting was performed with the doors closed so that nonbelievers who came to make fun could not gain entrance.
Purport
Chanting of the Hare Kṛṣṇa mahā-mantra is open to everyone, but sometimes nonbelievers come to disturb the ceremony of chanting. It is indicated herein that under such circumstances the temple doors should be closed. Only bona fide chanters should be admitted; others should not. But when there is large-scale congregational chanting of the Hare Kṛṣṇa mahā-mantra, we keep our temples open for everyone to join, and by the grace of Lord Caitanya Mahāprabhu this policy has given good results.
— A.C. Bhaktivedanta Swami Prabhupāda
My note
Source: vedabase.io