俱舍論記 6.72

6.72

「若同類因至當有何過」者，此下明未來若有同類因，即有二難：一本論不說難、二互為因果難。此下第一通本論不說難，將明問起。若同類因未來世有如異熟因，當有何過？

Regarding "If the similar cause ... what fault would there be?": below this, it is explained that if the similar cause exists in the future, there will be two objections: first, the objection that the root treatises do not state it; second, the objection of mutual causation. Below this, the first resolves the objection that the root treatises do not state it, raising a question to initiate the explanation: If the similar cause exists in the future realm just like the maturation cause, what fault would there be?