Shatapatha Brahmana 8.7.4.10

8.7.4.10

paścādagre prāṅ tiṣṭhan | athottarato dakṣiṇātha purastātpratyaṅṅatha jaghanena parītya dakṣiṇata udaṅ tiṣṭhaṃstaddakṣiṇāvṛttaddhi devatrāthānuparītya paścātprāṅ tiṣṭhaṃstatho hāsyaitatprāgeva karma kṛtam bhavati

First (he scatters them) at the back whilst standing with his face towards the east; then on the left (north) side towards the south; then in front whilst facing the west; then, having gone round the back, from the south whilst facing the north: this is from left to right (sunwise), for that is (the way) with the gods. Then, having gone round, (he scatters chips) at the back whilst standing with his face to the east, for in this way that former performance of him took place.