Shiva Purana
एवं कृते तदा तेन गौतमेन तदाज्ञया ॥ कुशावर्तं नाम चक्रे गङ्गाद्वारादधोगतम् ॥ १९॥
When they did so, a ditch named Kuiāvarta just beneath Gaṅgādvāra was made by Gautama with her permission.
english translation
evaM kRte tadA tena gautamena tadAjJayA ॥ kuzAvartaM nAma cakre gaGgAdvArAdadhogatam ॥ 19॥
hk transliteration by Sanscript