CC Madhya 20.60

tomā dekhi, tomā sparśi, gāi tomāra guṇa
sarvendriya-phala, — ei śāstra-nirūpaṇa
Word for word: 
tomā dekhi — by seeing you; tomā sparśi — by touching you; gāi tomāra guṇa — by praising your transcendental qualities; sarva-indriya-phala — the fulfillment of the activities of all the senses; ei — this; śāstra-nirūpaṇa — the verdict of the revealed scriptures.
Translation: 
Śrī Caitanya Mahāprabhu continued, “By seeing you, by touching you and by glorifying your transcendental qualities, one can perfect the purpose of all sense activity. This is the verdict of the revealed scriptures.
Purport: 

This is confirmed in the following verse from the Hari-bhakti-sudhodaya (13.2).