Halakhah su Genesi 17:26

The Imrei Yosher argues that this idea is reflected by the Midrash (Breishit Rabbah 47:9, commenting on Breishit 17:26) that states, "Rav Abba said, 'He suffered pain so that Hashem will double his reward.’" Rav Weinberg, though, counters that this Midrash merely demonstrates that Avraham Avinu desired the reward for the pain he had to endure for brit milah. It does not prove that there is an obligation to inflict pain on baby boys who do not intend to be rewarded for their pain.