CC Madhya 22.147
hari-bhaktau pravṛttā ye
na te syuḥ para-tāpinaḥ
ete — all these; na — not; hi — certainly; adbhutāḥ — wonderful; vyādha — O hunter; tava — your; ahiṁsā-ādayaḥ — nonviolence and others; guṇāḥ — qualities; hari-bhaktau — in devotional service; pravṛttāḥ — engaged; ye — those who; na — not; te — they; syuḥ — are; para-tāpinaḥ — envious of other living entities.
“ ‘O hunter, good qualities like nonviolence, which you have developed, are not very astonishing, for those who are engaged in the Lord’s devotional service are never inclined to give pain to others because of envy.’
This is a quotation from the Skanda Purāṇa. It was spoken by Nārada Muni to the reformed hunter Mṛgāri.