Bhagavatapurana 9.7.5

9.7.5

tasya satyavrataḥ putrastriśaṅkuriti viśrutaḥ /
prāptaścāṇḍālatāṃ śāpādguroḥ kauśikatejasā //

5. & 6. Of this last was born Satyavrata who became celebrated as Trisanku and who, under his preceptor's curse, became a Chandala (out-cast) and by virtue of Visvamitra's power, proceeded to Swarga with the mortal body and even to this day is seen in the heavens; for he was hurled down with his head towards the earth (downwards) by the gods, but he was made to stop in the heavens by the virtue of the same Visvamitra.