Garudapurana 1.48.87

1.48.87

agna āyāhi jaṅghe dve śannodevīti jānunī /
bṛhadrathantare ūrū udareṣvātilo (svātino) nyaset //

"agna ā yāhi..." on both shanks, and "śan no devīḥ..." on both knees; / Bṛhat and Rathantara on both thighs, and he should place "svātinaḥ..." on the abdomen;