Śrīmad-Bhāgavatam · Text 10.34.20
Who is speaking and story frame
कदाचिदथ गोविन्दो रामश्चाद्भुतविक्रम: ।
विजह्रतुर्वने रात्र्यां मध्यगौ व्रजयोषिताम् ॥ २० ॥
kadācid atha govindo
rāmaś cādbhuta-vikramaḥ
vijahratur vane rātryāṁ
madhya-gau vraja-yoṣitām
Once Lord Govinda and Lord Rāma, the performers of wonderful feats, were playing in the forest at night with the young girls of Vraja.
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.