Śrīmad-Bhāgavatam · Text 10.58.25
Who is speaking and story frame
भगवांस्तत्र निवसन् स्वानां प्रियचिकीर्षया ।
अग्नये खाण्डवं दातुमर्जुनस्यास सारथि: ॥ २५ ॥
bhagavāṁs tatra nivasan
svānāṁ priya-cikīrṣayā
agnaye khāṇḍavaṁ dātum
arjunasyāsa sārathiḥ
The Supreme Lord stayed in that city for some time to please His devotees. On one occasion, Śrī Kṛṣṇa wanted to give the Khāṇḍava forest as a gift to Agni, and so the Lord became Arjuna’s charioteer.
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.