大毘盧遮那經廣大儀軌 2.128

2.128

右寶蓮華中，觀噞字光輪，
轉成持地尊。掌背地空叉，
二手金剛印。

In the jeweled lotus on the right, visualize the light-wheel of the syllable kaṃ,
which transforms into the honored one Dharaṇīṃdhara;
with backs of palms [together], cross earth and space,
the two hands [forming] a vajra mudrā.