Shiva Purana
त्रिशंकुरिति होवाच त्रिशंकुरिति स स्मृतः ॥ विश्वामित्रस्तु दाराणामागतो भरणे कृते ॥ १५ ॥
He was called Trishanku and was known as Trishanku. Viswamitra came to support his wives.
english translation
trizaMkuriti hovAca trizaMkuriti sa smRtaH ॥ vizvAmitrastu dArANAmAgato bharaNe kRte ॥ 15 ॥
hk transliteration by Sanscript