Pitṛgaṇa-Vibhāga (Classification of the Pitṛs) and the Śrāddha–Soma Nourishment Cycle
मत्प्रसादाच्च तनयो वरदस्ते भविष्यति / तथेत्युक्त्वा तदा सा तु संप्रत्दृष्टा महानदी
matprasādācca tanayo varadaste bhaviṣyati / tathetyuktvā tadā sā tu saṃpratdṛṣṭā mahānadī
By my grace, you shall have a son who grants boons. Saying “So be it,” she assented; then the Great River (Gaṅgā) was seen manifest before them.