Aitareyabrahmana 3.2.p30

3.2.p30

iii. 23 (xii. 12). The Ṛc and the Sāman were here in the beginning. The Ṛc was called ‘she’, the Sāman ‘he’. The Ṛc said to the Sāman ‘Let us be united for generation.’ ‘No’, replied the Sāman, ‘my greatness is above thine.’ She becoming two spoke (to him); he did not at all consent. Having become three she spoke; with three he united. In that with three he united, therefore with three they chant, with three sing, for with three is the Sāman commensurate. Therefore one (husband) has many wives, but not one (woman) at once many husbands. In that thus he and she were united, thus came into being the Sāma (*sā-ama*); that is why the Sāman has its name. He becomes fair who knows thus; he who prospers, who attains pre-eminence, he becomes fair, for as ‘unfair’ men reproach (a man).