SB 11.29.28

ya etac chraddhayā nityam
 avyagraḥ śṛṇuyān naraḥ
mayi bhaktiṁ parāṁ kurvan
 karmabhir na sa badhyate
Synonyms: 
yaḥ — who; etat — this; śraddhayā — with faith; nityam — regularly; avyagraḥ — free from distraction; śṛṇuyāt — listens; naraḥ — a person; mayi — to Me; bhaktim — devotional service; parām — transcendental; kurvan — performing; karmabhiḥ — by fruitive actions; na — not; saḥ — he; badhyate — becomes bound up.
Translation: 
Anyone who regularly listens to this knowledge with faith and attention, all the while engaging in My pure devotional service, will never become bound by the reactions of material work.