Tzedakah — Charity

From every form of abundance that flows to one — by whatever means it comes — one should set aside tzedakah to support all the affairs of Rabbainu, including: sustaining the descendants and relatives of the Tzaddik who engage in the service of Hashem; printing and distributing his holy books throughout Yisroel at greatly reduced cost; and supporting his batei midrash. It is good to begin by setting aside at minimum a terumah — that is, two percent of one's income — until one merits to tithe all one's possessions fully.