Being separated from its flock and distressed by its miscarriage, the black doe, having crossed the river, was very much distressed. Indeed, it fell down in a cave and died immediately.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तत्प्रसवोत्सर्पणभयखेदातुरा स्वगणेन वियुज्यमाना कस्याञ्चिद्दर्यां कृष्णसारसती निपपाताथ च ममार
tatprasavotsarpaṇabhayakhedāturā svagaṇena viyujyamānā kasyāñciddaryāṃ kṛṣṇasārasatī nipapātātha ca mamāra
SB 5.8.6