Vimshabrahmana 35.11

Viṃśabrāhmaṇa 35.11

sa etaṃ ṣaḍahaṃ punaḥ prāyuṅkta tābhyāṃ dvābhyāṃ
ṣaḍahābhyāṃ dvādaśamāsaḥ prājanayat