Karma Vipaka Samhita 6.25

गङ्गामध्ये प्रदातव्यं संतानार्थे वरानने ॥

in the middle of the Ganga, for the sake of offspring, O fair one. Have a homa (fire offering) done with effort in a round fire pit.

स्वर्णशृङ्गीं रौप्यखुरां पट्टवस्त्रसमन्विताम् ॥

Give a cow to the teacher by the rule, dear one. Its horns are covered in gold and its hooves in silver. Give it with silk cloth and a vessel.

एवं कृते न संदेहो वन्ध्यात्वं च प्रणश्यति ॥

When this is done there is no doubt: the state of being vandhya (a woman who cannot bear children) ends. Sons and grandsons grow, no doubt, O fair…