It was stated that the farmer was not permitted to benefit from the gleanings, and was not permitted to discriminate among the poor, nor try to frighten them away with dogs or lions (Hullin 131a, Pe'ah 5:6). The farmer was not even allowed to help one of the poor to gather the left-overs. However, it was also argued that the law was only applicable in Canaan (Jerusalem Talmud. Pe'ah 2:5), although many classical rabbinical writers who were based in Babylon observed the laws there (Hullin 134b). It was also seen as only applying to Jewish paupers, but poor non-Jews were allowed to benefit for the sake of civil peace. Maimonides lists his Eight Levels of Giving, as written in the "Mishneh Torah", "Hilkhot matanot aniyim" ("Laws about Giving to Poor People"), Chapter 10:7–14:   In practice, most Jews carry out "tzedakah" by donating a portion of their income to charitable institutions, or to needy people whom they may encounter. The perception among many modern-day Jews is that if donation of this form is not possible, the obligation of "tzedakah" still requires that something be given. Traditional Jews commonly practice "ma'sar kesafim," tithing 10% of their income to support those in need. Special acts of "tzedakah" are performed on significant days: At weddings, Jewish brides and bridegrooms would traditionally give to charity to symbolise the sacred character of the marriage. At Passover, a major holiday in Jewish tradition, it is traditional to be welcoming towards hungry strangers and feed them at the table. At Purim it is considered obligatory for every Jew to give food to one other person, and gifts to at least two poor people, in an amount that would equate to a meal each, for the purpose of increasing the total happiness during the month. As for the more limited form of "tzedakah" expressed in the biblical laws, namely the leaving of "gleanings" from certain crops, the Shulchan Aruch argues that during The Exile Jewish farmers are not obliged to obey it. Nevertheless, in modern Israel, rabbis of Orthodox Judaism insist that Jews allow "gleanings" to be consumed by the poor and by strangers, and all crops (not just "gleanings") by anyone and everyone (free, not bought nor sold) during sabbatical years.