tāsām — of those four collections saḥ — he caturaḥ — four śiṣyān — disciples upāhūya — calling near mahā-matiḥ — the powerfully intelligent sage eka-ekām — one by one saṁhitām — a collection brahman — O brāhmaṇa eka-ekasmai — to each of them dadau — he gave vibhuḥ — the powerful Vyāsadeva.