Anandakanda 1.3.60

1.3.60

tatropaveśya śiṣyaṃ ca bandhayitvā vilocane /
garbhādhānaṃ puṃsavanaṃ sīmantonnayanaṃ tataḥ //

Having seated the disciple there and bound his eyes, / [he should perform] the impregnation, the rite for procuring a male child, and then the parting of the hair;