The Life of Ballālasena 2.13.36

2.13.36

garbhādhānamṛtau puṃsaḥ savanaṃ spandanāt purā /
turyye 'ṣṭame vā sīmanto janane jātakarmma ca //

The conception rite in season; the rite for quickening a male child before quickening; / the hair-parting rite in the fourth or eighth month; and the birth rite at birth;