From these countless hundreds of mantras of the Yajur Veda, the powerful sage made fifteen branches. Kāṇva, Mādhyandina and other sages accepted these mantras known as the Vājasaneyi-saṁhitā because they were produced from the hairs of the horse's mane. He made fifteen branches from the hundreds of Yajur mantras he received. Vājasanyaḥ means “taken from hair of the horses of the sun god.”