The Great Epic of the Bhārata dynasty 1.109.8

1.109.8

saṃsaktastu tayā mṛgyā mānuṣīmīrayangiram |
kṣaṇena patito bhūmau vilalāpākulendriyaḥ || 8 ||

"Vaisampayana said, 'O king, one day Pandu, while roaming about in the woods (on the southern slopes of the Himavat) that teemed with deer and wild animals of fierce disposition, saw a large deer, that seemed to be the leader of a herd, serving his mate. Beholding the animals, the monarch pierced them both with five of his sharp and swift arrows winged with golden feathers. O monarch, that was no deer that Pandu struck at, but a Rishi's son of great ascetic merit who was enjoying his mate in the form of a deer. Pierced by Pandu, while engaged in the act of intercourse, he fell down to the ground, uttering cries that were of a man and began to weep bitterly.