Rabbi Asher Zelig Rubenstein zt”l was a Rosh Yeshiva and mashpia par excellence. His mission was to ensure that his talmidim learned true Torah hashkafos, bitachon, middos, and simchas hachayim, which he taught by example. He carried on the mesorah of his illustrious rabbeim: Rav Mordechai Gifter, Rav Shneur Kotler, Rav Nosson Watchtfogel, Rav Elazar Menachem Shach, Rav Yosef Shlomo Kahaneman, Rav Chatzkal Levenstein, Rav Shmuel Auerbach, zecher tzaddikim livrachah and many more.