Manusmriti

siva.sh/manusmriti/12/41

त्रिविधा त्रिविधैषा तु विज्ञेया गौणिकी गतिः । अधमा मध्यमाग्र्या च कर्मविद्याविशेषतः ॥ ४१ ॥

sanskrit

But know this threefold course of transmigrations that depends on the (three) qualities (to be again) threefold, low, middling, and high, according to the particular nature of the acts and of the knowledge (of each man).

english translation

trividhA trividhaiSA tu vijJeyA gauNikI gatiH | adhamA madhyamAgryA ca karmavidyAvizeSataH || 41 ||

hk transliteration by Sanscript