Agnipurana 263.20

263.20

somāya somapuruṣebhya udagdadyādanantaraṃ /
brahmaṇe brahmapuruṣebhyo madhye dadyāttathaiva ca //

thereafter he should give to the north to Soma and Soma's attendants; / and likewise in the center he should give to Brahmā and Brahmā's attendants;