Śatapatha Brāhmaṇa ("of a hundred paths") 7.3.1.7

7.3.1.7

taddhaike | ubhayatraiva palāśaśākhayā vyudūhantyubhayatra vai cinotīti na tathā kuryādavasyati vāva gārhapatyenordhva evāhavanīyena rohati tasmāttathā na kuryāt

Now some sweep with the palâsa branch on both occasions, saying, 'Surely, on both occasions he builds (an altar).' Let him, however, not do so; for by (building) the Gârhapatya he settles, and by the Âhavanîya he rises upwards: therefore let him not do so.