Shiva Purana
अगच्छद्वडवा भूत्वाऽऽच्छाद्यरूपं ततस्त्वकम् ॥ कुरुंस्तदोत्तरान्प्राप्य नृणां मध्ये चचार ह ॥ १२ ॥
She assumed the form of a mare. Going to Northern Kurus she wandered among the people.
english translation
agacchadvaDavA bhUtvA''cchAdyarUpaM tatastvakam ॥ kuruMstadottarAnprApya nRNAM madhye cacAra ha ॥ 12 ॥
hk transliteration by Sanscript