CC Madhya 24.107

jñāna-mārge upāsaka — duita’ prakāra
kevala brahmopāsaka, mokṣākāṅkṣī āra
Synonyms: 
jñāna-mārge — on the path of philosophical speculation; upāsaka — worshipers; duita’ prakāra — two varieties; kevala — only; brahma-upāsaka — the worshiper of impersonal Brahman; mokṣa-ākāṅkṣī — desiring liberation; āra — and.
Translation: 
“There are two kinds of worshipers on the path of philosophical speculation — one is called brahma-upāsaka, a worshiper of the impersonal Brahman, and the other is called mokṣākāṅkṣī, one who desires liberation.