Shatapatha Brahmana 11.1.5.11

11.1.5.11

daṇḍaṃ dakṣiṇāṃ dadāti daṇḍena vai śvānam bādhante tadetamevaitadbādhate yaddaṇḍaṃ dakṣiṇāṃ dadātyeṣā nvādiṣṭā dakṣiṇā dadyāttvevāsyāmapyanyadyā itarā dakṣiṇāstāsāṃ yatsampadyeta sā haiṣā paśavyeṣṭistayāpyanabhyuddṛṣṭo yajetaiva

A staff he gives as dakshinâ; for with a staff a dog is driven away: he thus drives away that (dog) when he gives a staff as dakshinâ. This, indeed, is the prescribed dakshinâ; but he may give anything else besides, of such other (objects meet for) dakshinâs as may be at his disposal. This, doubtless, is an offering relating to cattle: he may perform it even though (the moon) was not seen (at his New-moon sacrifice).