Hiranyakeshigrihyasutra 2.4.10.5

2.4.10.5

ājyabhāgāntaṃ kṛtvā prācīnāvītī pitṝnāvāhayati \ āyāta pitaraḥ somyā gambhīraiḥ pathibhiḥ pūrvyaiḥ \ prajāmasmabhyaṃ dadato rayiṃ ca dīrghāyutvaṃ ca śataśāradaṃ ca \ iti \5\

Having performed the rites down to the Âgyabhâga offerings, he suspends his sacrificial cord over his right shoulder and calls the Fathers (to his sacrifice) with (the verse), 'Come hither, O Fathers, friends of Soma, on your hidden, ancient paths, bestowing on us offspring and wealth and long life, a life of a hundred autumns.'