Kauṣītaki (Śāṅkhāyana) Brāhmaṇa 26.2.3_7

26.2.3_7

mano vā etad yad aparimitam prajāpatir vai mano yajña u vai prajāpatiḥ svayam vai tad yajño yajñasya juṣate yan mano manasas tasmād ānantaryāt prayogaḥ syād iti ha sma āha kauṣītakir / (soma: chandomāh)

Mind, indeed, is that which is unlimited. Mind is Prajāpati; sacrifice too is Prajāpati. The sacrifice itself enjoys of the sacrifice that which is mind of mind. Therefore the application should be immediate," so said Kauṣītaki.