Midrash su Levitico 26:39

2) (Vayikra 26:39) "And those that are left of you will melt away ("yimaku") in their sins": ("yimaku" is to be understood as "yimasu" ["melt away"]) It is not written that they will melt away because of their sins, but that they will melt away in their sins (i.e., their sins themselves will afflict them). "and also with the sins of their fathers with them they will melt away": But has the Holy One Blessed be He not assured Israel that fathers will not punish fathers because of the children nor children because of the fathers? (viz. Devarim 24:16) "Fathers shall not be put to death by cause of sons, and sons shall not be put to death because of fathers"? If so, what is the intent of "also with the sins of their fathers with them will they melt away"? When they hold onto the sins of their fathers (thus "with them") generation after generation, they are punished for them.

(Fol. 27b) (Deut. 24, 16) Fathers shall not be put to death for the children..... for his son's sin, etc. For what purpose is this written? If only to teach us the meaning of it taken literally, we know this from the end of the verse — for his own sin shall every man be put to death. It must therefore be interpreted, fathers should not die by the testimony of their children, and children shall not die by the testimony of their fathers. And children, you say, should not die by the sin of their fathers? Is there not a passage (Ex. 34, 7) Visiting the iniquities of the fathers upon the children? That passage refers to children who hold in their hands the deeds of their fathers, (follow their fathers' example), as we are taught (Lev. 26, 39) And also through the iniquities of their fathers shall they pine away with them; i.e., when they hold in their hands the deeds of their fathers. But perhaps this refers even to those who do not follow the example of their fathers? Since the passage reads (Deut. 24, 16) For his own sin shall every man be put to death, it includes even those who follow the deeds of their fathers. And when they do not follow the example of their fathers you say they cannot be punished? Indeed it is written (Lev. 26, 37) And they shall stumble one over another. Infer from tins that all (Israel) are responsible for one another. That deals with a case when they had an opportunity to protest [against the evil] and they did not, [they are therefore responsible].