Caitanya-caritāmṛta 3.90
asura-svabhāve kṛṣṇe kabhu nāhi jāne lukāite nāre kṛṣṇa bhakta-jana-sthāne
[asura-svabhaave krishne kabhu naahi jaane lukaaite naare krishna bhakta-jana-sthaane]
Blended reading (Sanskrit + English inline)
asura-svabhāve kṛṣṇe kabhu nāhi jāne lukāite nāre kṛṣṇa bhakta-jana-sthāne
Those whose nature is demoniac cannot know Kṛṣṇa at any time, but He cannot hide Himself from His pure devotees.
Purport
People who develop the nature of asuras like Rāvaṇa and Hiraṇyakaśipu can never know Kṛṣṇa, the Personality of Godhead, by challenging the authority of Godhead. But Śrī Kṛṣṇa cannot hide Himself from His pure devotees.
— A.C. Bhaktivedanta Swami Prabhupāda
My note
Source: vedabase.io