攝大毘盧遮那成佛神變加持經入蓮華胎藏海會悲生曼荼攞廣大念誦儀軌供養方便會 2.81

2.81

Next, the Ten Powers of the Buddha are explained: join samādhi and prajñā with hollowed palms,
bend the earths and spaces into the palms, joining the knuckles within the moon.
Smṛtyupasthāna is the same as the Ten Powers, bending both spaces and winds
so that their upper knuckles join.
Next, the Awakening mudrā is presented: to the previous mudrā, add the spaces over the waters,
and extend and join all other digits.
For Samantabhadra's Cintāmaṇi, join hollow palms and place the winds over the fires.
Maitreya's mudrā is the same as the previous one: bend the winds below the fire wheels.