Jaiminīya (Talavakāra) Brāhmaṇa 50.268

50.268

tato vā indrastṛtīyasavanamupāvartata
tato'smādanapakramyabhavat
tadetatsendraṃ sāma
sendro hāsya sadevo yajño bhavati
abhyasyendro yajñamāvartate
nāsyendro yajñādapakrāmati ya evaṃ veda
tadvevācakṣate vasiṣṭhasya nihava iti
vasiṣṭho vai jīto hataputro'kāmayata prajāṃ paśūnnihvayeyeti
sa etatsāmāpaśyat
tenāstuta
tenāyihī āyihī ityeva prajāṃ paśūnnyahvayata
tadveva nihavatvam
prajāṃ paśūnnihvayate ya evaṃ veda
tadu stobhānutunnaṃ bhavati
anutunnādvai prajāḥ paśavaḥ prajāyante
paśavaśchandomāḥ
tena vai rūpasamṛddham
yadu vasiṣṭho'paśyattasmādvāsiṣṭhasya nihava ityākhyāyate

Then indeed Indra turned toward the third pressing. Thence he became unyielding to departure from him. This is that sāman accompanied by Indra. Accompanied by Indra indeed, accompanied by the gods, becomes the sacrifice of him, Indra turns toward his sacrifice, Indra does not depart from the sacrifice of one who knows thus. They also call it the "Invocation of Vasiṣṭha". Vasiṣṭha, indeed, defeated and with his sons slain, desired: "May I invoke offspring and cattle." He saw this sāman. He praised with it. With it, saying: "Come here, come here!", he invoked offspring and cattle. That indeed is the quality of invocation. He invokes offspring and cattle, who knows thus. And it is unobstructed by stobhas. From what is unobstructed, indeed, offspring and cattle are born. The chandomas are cattle. By that indeed it is rich in form. And because Vasiṣṭha saw it, therefore it is called "Vasiṣṭha's Invocation".