Śrīmad-Bhāgavatam · Text 11.17.33
Who is speaking and story frame
स्त्रीणां निरीक्षणस्पर्शसंलापक्ष्वेलनादिकम् ।
प्राणिनो मिथुनीभूतानगृहस्थोऽग्रतस्त्यजेत् ॥ ३३ ॥
strīṇāṁ nirīkṣaṇa-sparśa-
saṁlāpa-kṣvelanādikam
prāṇino mithunī-bhūtān
agṛhastho ’gratas tyajet
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.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.