Agniveshyagrihyasutra 3.6.4.11

3.6.4.11

yamevaṃ nidadhyurya u cainamevaṃ vidurevamu hāhīnā hāyanā vāśvatthaṃ nidadhyustaṃ ho evaṃ cakre tasyo heme 'hīnā hāyanā śreyasī śreyasī hyasmai vasyasī vasyasī prajā bhavati \

Whomever they bury thus, and whoever know him thus—just so indeed the Ahīnas or the Hāyanas placed [the bones in] an aśvattha; thus indeed he did; and to him these Ahīnas and Hāyanas—better and better, more and more prosperous indeed becomes his offspring.