Śrīmad-Bhāgavatam · Text 10.34.9
Who is speaking and story frame
स वै भगवत: श्रीमत्पादस्पर्शहताशुभ: ।
भेजे सर्पवपुर्हित्वा रूपं विद्याधरार्चितम् ॥ ९ ॥
sa vai bhagavataḥ śrīmat
pāda-sparśa-hatāśubhaḥ
bheje sarpa-vapur hitvā
rūpaṁ vidyādharārcitam
The snake had all his sinful reactions destroyed by the touch of the Supreme Lord’s divine foot, and thus he gave up his serpent body and appeared in the form of a worshipable Vidyādhara.
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.