Kaushitakagrihyasutra 5.3.1

5.3.1

paścānnidhāya gārhapatyaṃ dakṣiṇato dakṣiṇāgniṃ purastādāhavanīyam \1\

having placed the gārhapatya fire to the west, the dakṣiṇa fire to the south, and the āhavanīya fire to the east;