Responsa su Salmi 145:26

However, I am surprised by the matter itself. We find no hunters other than Nimrod and Esau, and this is not the way of the children of Abraham, Isaac, and Jacob. Go and look, regarding the congratulation “let it be worn out and renewed” – R. Jacob Weil writes in his rulings, cited by Rema in Orah Hayim at the end of §223, that one does not say this on something made of animal skins, because “His mercy extends over all His creations” (Psalms 145:9). And even though Rema writes on this that it is weak reasoning, because it is not necessary for an animal to be killed on his behalf, as there are many pelts and skins that are already prepared, and many of them die of natural causes but can still be used for their pelts. Nevertheless, Rema concludes that many are careful about this. For how can a man of Israel actively kill beasts needlessly, simply to pass his leisure time by engaging in hunting?