One verse

Srimad Bhagavatam 11.29.31

11.29.31

एतैर्दोषैर्विहीनाय ब्रह्मण्याय प्रियाय च । साधवे शुचये ब्रूयाद् भक्ति: स्याच्छूद्रयोषिताम् ॥ ३१ ॥

etair doṣair vihīnāya brahmaṇyāya priyāya ca sādhave śucaye brūyād bhaktiḥ syāc chūdra-yoṣitām

etaiḥ
of these
doṣaiḥ
faulty qualities
vihīnāya
to the person who is devoid
brahmaṇyāya
to one dedicated to the welfare of the brāhmaṇas
priyāya
kindly disposed
ca
and
sādhave
saintly
śucaye
pure
brūyāt
one should speak
bhaktiḥ
devotion
syāt
if it is present
śūdra
of the common workers
yoṣitām
and women

This knowledge should be taught to one who is free from these bad qualities, who is dedicated to the welfare of the brāhmaṇas, and who is kindly disposed, saintly and pure. And if common workers and women are found to have devotion for the Supreme Lord, they are also to be accepted as qualified hearers.