Markandeyapurana 85.71

85.71

kiṃ tvatra yatpratijñātaṃ mithyā tatkriyate katham /
śrūyatāmalpabuddhitvāt pratijñā yā kṛtā purā //

The goddess spoke:
Truly hast thou spoken; nought hast thou uttered falsely herein. Sovereign of the three worlds is Śumbha, and like unto him is Niśumbha also! But how can that which has been promised concerning this myself be fulfilled falsely? Hearken, what vow I made formerly by reason of my small understanding at that time, —‘He who vanquishes me in fight, who forces my pride from me, and who is my match in strength in the world, he shall be my husband.’ Let Śumbha come here then, or Niśumbha the great Asura; let him vanquish me—what need of delay here? and let him lightly take my hand in marriage!