Pañcaviṃśa (Tāṇḍya Mahā) Brāhmaṇa 10.12.2

10.12.2

yasya padena prastauty atha svāram abhi vāva tena devāḥ paśūn apaśyan yat purastāt stobhaṃ atha svāram ud eva tenāsṛjanata yad ubhayataḥ stobham atha svāram ebhya eva tena lokebhyo devāḥ paśubhyo 'nnādyaṃ prāyacchan yad anutunnam atha svāram upaiva tenāśikṣan yasya madhye nidhanam atha svāraṃ garbhāṁs tenādadhata tāni havatāsvāreṇa prājanayan

[A sāman] whose prastāva is chanted with a foot and then ends in a svāra tone—by that the gods saw cattle. That which has a stobha at the beginning and then ends in a svāra tone—by that they brought forth [cattle]. That which has a stobha on both sides and then ends in a svāra tone—by that the gods gave food to cattle from these worlds. That which is unthrust and then ends in a svāra tone—by that they strove to obtain [cattle]. That which has its cadence in the middle and then ends in a svāra tone—by that they placed embryos [in them]. With that which has 'hāvat' and ends in a svāra tone, they brought them forth.