śuciḥ sad-bhakti-dīptāgni-
dagdha-durjāti-kalmaṣaḥ
śva-pāko 'pi budhaiḥ ślāghyo
na veda-jño 'pi nāstikaḥ
śuciḥ - a brāhmaṇa purified internally and externally; sat-bhakti - of devotional service without motives; dīpta-agni - by the blazing fire; dagdha - burnt to ashes; durjāti - such as birth in a low family; kalmaṣaḥ - whose sinful reactions; śva-pākaḥ api - even though born in a family of dog-eaters; budhaiḥ - by learned scholars; ślāghyaḥ - recognized; na - not; veda-jñaḥ api - even though completely conversant in Vedic knowledge; nāstikaḥ - an atheist.
This verse and the next are quoted from the Hari-bhakti-sudhodaya (3.11, 12), a transcendental literature extracted from the Purāṇas.