Musar su Deuteronomio 24:16

In light of this a mourner reciting Kaddish for a parent should be careful to recite it with great concentration. It is important that the one reciting Kaddish also respond, Amein, yehei shemeih raba. Let him not emulate the ignorant who stop at the words, “And say Amein” [ve’imru Amein] and then continue with the words “May the name be blessed and praised” [yisborach veyishtabach]. Rather, he must also say, Amein, yehei shemeih raba because that is the most essential part of the Kaddish. In this way he brings pleasure to the Holy One Blessed is He as well as to his father and mother. If a person has no sons let him take an orphan into his home and raise him in the study of Torah and the service of Hashem. For perhaps the father and mother of the orphan were wicked and now their son will bring them merit. Then the one who raised him will have earned a great reward in this world and the next. On the other hand, if someone raises an orphan in his home only in order that he should serve him, then not only does he receive no reward, he is severely punished. For just as a virtuous son brings merit to his father, so does a wicked son cause his parents to be punished because they failed to rebuke him while they were alive. It is for this reason that the sin of the son is visit upon his parents. But if the deceased left a young son and someone else raised him, then they do not punish the father but the one who raised him. Concerning this was it stated, “Each man for his own sin shall they be killed” (Devarim 24:16).