大佛頂如來放光悉怛多般怛羅大神力都攝一切呪王陀羅尼經大威德最勝金輪三昧呪品 1.20

1.20

"Constantly make it by placing the two middle fingers behind the ring fingers, pressing the index fingers with the two thumbs so they hook each other, the two middle fingers behind the two ring fingers touching the index fingers, the two ring fingers extended straight, and the two little fingers bound to the middle fingers and extended straight; this is inconceivable."