Apastambadharmasutra 2.1.2.4

2.1.2.4

yathā-oṣadhivanaspatīnāṃ bījasya kṣetrakarmaviśeṣe phalaparivṛddhir evam /

As the seed of herbs (and) trees, (sown) in good and well-cultivated soil, gives manifold returns of fruit (even so it is with men who have received the various sacraments).