yada yada hi dharmasya
glanir bhavati bharata
tadatmanam srjamy aham
yada yada—whenever; hi—certainly; dharmasya—of religious principles; glanih—decrease; bhavati—there is; bharata—O descendant of Bharata; abhyutthanam—increase; adharmasya—of irreligion; tada—then; atmanam—Myself; srjami—manifest; aham—I.
" 'Whenever and wherever there is a decline in religious practice, O descendant of Bharata, and a predominant rise of irreligion-at that time I descend Myself.
Link to this page: https://prabhupadabooks.com/cc/adi/3/22