The Great Liberation Tantra· 3.103 / 153

The Great Liberation Tantra3.103

3.103
तत्सदिति वदेद्देवि प्रारम्भे सर्वकर्मणाम् । ब्रह्मार्पणमस्तु वाक्यं पानभोजनकर्मणोः ॥१०३॥
tatsaditi vadeddevi prārambhe sarvakarmaṇām | brahmārpaṇamastu vākyaṃ pānabhojanakarmaṇoḥ ||103||
— 'tat sat' (That is the Real) ; — one should say, O goddess ; — at the commencement ; — of all actions ; — 'let it be an offering to Brahman' ; — the formula ; — of the acts of drinking and eating

One should say 'tat sat', O goddess, at the start of all actions; and 'let it be an offering to Brahman' is the formula for the acts of drinking and eating.