CC Madhya 25.120
sarva-jana-deśa-kāla-daśāte vyāpti yāra
“ ‘Now please hear from Me about the process of devotional service, which is applicable in any country, for any person, at all times and in all circumstances.
The cult of bhāgavata-dharma can be spread in all circumstances, among all people and in all countries. Many envious people accuse the Kṛṣṇa consciousness movement of spoiling the rigidity of so-called Hinduism. That is not actually the fact. Śrī Caitanya Mahāprabhu confirms that devotional service to the Lord — the cult of bhāgavata-dharma, which is now being spread as the Hare Kṛṣṇa movement — can be spread in every country, to every person, in any condition of life, and in all circumstances. Bhāgavata-dharma does not restrict pure devotees to the Hindu community. A pure devotee is above a brāhmaṇa; therefore it is not incompatible to offer the sacred thread to devotees in Europe, America, Australia, Japan, Canada, and so on. Sometimes these pure devotees, who have been accepted by Śrī Caitanya Mahāprabhu, are not allowed to enter certain temples in India. Also, some high-caste brāhmaṇas and gosvāmīs refuse to take prasādam in the temples of the International Society for Krishna Consciousness. Actually this is against the instruction of Śrī Caitanya Mahāprabhu. Devotees can come from any country, and they can belong to any creed or race. On the strength of this verse, those who are actually devotees and followers of Śrī Caitanya Mahāprabhu must accept devotees from all parts of the world as pure Vaiṣṇavas. They should be accepted not artificially but factually. One should see how they are advanced in Kṛṣṇa consciousness and how they are conducting Deity worship, saṅkīrtana and Ratha-yātrā. Considering all these points, the envious persons must henceforward refrain from their malicious atrocities.