Markandeyapurana 93.6

93.6

saṃdarśanārthamambāyā nadīpulinasaṃsthitaḥ /
sa ca vaiśyastapastepe devīsūktaṃ paraṃ japan //

Mārkaṇḍeya spoke:
Having heard this his speech, king Suratha fell prostrate before the illustrious ṛṣi who performed severe penances, and being down-cast by his excessive regard for self and by the deprivation of his kingdom, went forthwith to perform austerities; and the vaiśya, O great muni, in order to get a vision of Ambā, took up his station on a sand-bank in a river; and the vaiśya practised austerities, muttering the sublime hymn to the goddess. They both made an earthen image of the goddess on that sand-bank, and paid worship to it with flowers, incense, fire and libations of water. Abstaining from food, restricting their food, concentrating their minds on her, keeping their thoughts composed, they both offered the bali offering also sprinkled with blood drawn from their own limbs. When they continued with subdued souls to propitiate her thus for three years, Caṇḍikā, who upholds the world, well-pleased spoke in visible shape.