Gobhilagrihyasutra 3.8.10

3.8.10

tasya mukhyāṃ havirāhutiṃ hutvā catasṛbhir ājyāhutibhir abhijuhoti śatāyudhāye 'ty etatprabhṛtibhiḥ;

Having sacrificed first a Havis offering of that (milk-rice), he sacrifices over that (oblation) four Âgya oblations with (the verses), 'To him who bears a hundred weapons,' &c. (MB. II, 1, 9-12).