CC Madhya 22.49

sādhu-saṅge kṛṣṇa-bhaktye śraddhā yadi haya
bhakti-phala ‘prema’ haya, saṁsāra yāya kṣaya
Word for word: 
sādhu-saṅge — by the association of devotees; kṛṣṇa-bhaktye — in discharging devotional service to Kṛṣṇa; śraddhā — faith; yadi — if; haya — there is; bhakti-phala — the result of devotional service to Kṛṣṇa; prema — love of Godhead; haya — awakens; saṁsāra — the conditioned life in material existence; yāya kṣaya — becomes vanquished.
Translation: 
“By associating with a devotee, one awakens his faith in devotional service to Kṛṣṇa. Because of devotional service, one’s dormant love for Kṛṣṇa awakens, and thus one’s material, conditioned existence comes to an end.