One verse

Srimad Bhagavatam 11.17.33

11.17.33

स्‍त्रीणां निरीक्षणस्पर्शसंलापक्ष्वेलनादिकम् । प्राणिनो मिथुनीभूतानगृहस्थोऽग्रतस्त्यजेत् ॥ ३३ ॥

strīṇāṁ nirīkṣaṇa-sparśa- saṁlāpa-kṣvelanādikam prāṇino mithunī-bhūtān agṛhastho ’gratas tyajet

strīṇām
in relation to women
nirīkṣaṇa
glancing
sparśa
touching
saṁlāpa
conversing
kṣvelana
joking or sporting
ādikam
and so on
prāṇinaḥ
living entities
mithunī-bhūtān
engaged in sex
agṛha-sthaḥ
a sannyāsī, vānaprastha or brahmacārī
agrataḥ
first of all
tyajet
should give up

Those who are not married — sannyāsīs, vānaprasthas and brahmacārīs — should never associate with women by glancing, touching, conversing, joking or sporting. Neither should they ever associate with any living entity engaged in sexual activities.