Apastambagrihyasutra 2.4.9

2.4.9

athaināmuttarayā dakṣiṇe haste gṛhītvāgnimabhyānīyāpareṇāgnimudagagraṃ kaṭamāstīrya tasminnupaviśata uttaro varaḥ \ 9 \

Then he takes hold of her with the next (verse; M. I, 2, 8) by her right hand, leads her to the fire, spreads a mat, west of the fire, so that the points of the blades in it are directed towards the north, and on this mat they both sit down, the bridegroom to the north.