CC Ādi 17.123
‘হরি’ ‘হরি’–ধ্বনি বিনা অন্য নাহি শুনি ॥ ১২৩ ॥
‘hari’ ‘hari’ — dhvani vinā anya nāhi śuni
When the saṅkīrtana movement thus started, no one in Navadvīpa could hear any sound other than the words “Hari! Hari!” and the beating of the mṛdaṅga and clashing of hand bells.
The International Society for Krishna Consciousness now has its world center in Navadvīpa, Māyāpur. The managers of this center should see that twenty-four hours a day there is chanting of the holy names of the Hare Kṛṣṇa mahā-mantra, with the addition of haraye namaḥ, kṛṣṇa yādavāya namaḥ, for this song was a favorite of Śrī Caitanya Mahāprabhu’s. But all such saṅkīrtana must be preceded by the chanting of the holy names of the five tattvas — śrī-kṛṣṇa-caitanya prabhu-nityānanda śrī-advaita gadādhara śrīvāsādi-gaura-bhakta-vṛnda. We are already accustomed to chant these two mantras — śrī-kṛṣṇa-caitanya prabhu-nityānanda śrī-advaita gadādhara śrīvāsādi-gaura-bhakta-vṛnda and Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare/ Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare. Now, after these, the other two lines — namely haraye namaḥ, kṛṣṇa yādavāya namaḥ/ gopāla govinda rāma śrī-madhusūdana — should be added, especially in Māyāpur. Chanting of these six lines should go on so perfectly well that no one there hears any vibration other than the chanting of the holy names of the Lord. That will make the center spiritually all-perfect.