Manasara 45.36

45.36

vistāre caturaṅge vā ṣaṭśubhāyādi kārayet
tricatuṣpañcaṣaḍvṛdhyā cāṣṭahāniśca yonayaḥ

In the width or the four members, one should calculate the six auspicious [formulas] beginning with āya; / with an increase of three, four, five, or six, divided by eight, are the yoni [remainders].