mātṛ-sneha-vaśānugaḥ

sah-he (Visvarupa); eva-indeed; hi-certainly; dadau-offered; bhagam-share; paroksam-without the knowledge of the demigods; asuran-the demons; prati-unto; yajamanah-performing sacrifice; avahat-offered; bhagam-share; matr-sneha-by affection for his mother; vasa-anugah-being compelled.