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 1.229

1.229

「以大辯才天印同，唯改二中指直竪，二無名指相交入掌，二小指小交，二大指來去。若沐浴時，呪水入沐浴。」

"It is the same as the mudrā of Great Sarasvatī Deva, except that both middle fingers stand erect, both ring fingers cross and enter the palms, both little fingers cross slightly, and both thumbs move back and forth. When bathing, empower the water with mantras and enter the bath."