大日經持誦次第儀軌 1.65

1.65

次作召請法，堅固金剛縛，
直舒二風輪，俛屈其上節。
是名金剛鉤，能召一切眾，
聖依願而來，不違本誓願。

Next perform the rite of summoning and invitation: / Firmly form the vajrabandha; / Extend the two wind-wheels straight, / And slightly bend their upper joints. / This is called the vajrāṅkuśa; / It can summon all assemblies. / The holy ones come according to their vows, / Not contravening their original pledges.