Vṛṣṇivaṃśa–Anukīrtana (Enumeration of the Vṛṣṇi Lineage) — Questions on Viṣṇu’s Human Descent
शुक्राद्गर्भः समाभव द्रसमूलेन कर्मणा / तत्रापां प्रथमावापः स सौम्यो राशिरुच्यते
śukrādgarbhaḥ samābhava drasamūlena karmaṇā / tatrāpāṃ prathamāvāpaḥ sa saumyo rāśirucyate
From śukra the embryo (garbha) comes to be, through action whose root is rasa. There occurs the first infusion of the waters; that is called the Saumya rāśi, of Soma’s nature.