כִּ֣י תִקְצֹר֩ קְצִֽירְךָ֨ בְשָׂדֶ֜ךָ וְשָֽׁכַחְתָּ֧ עֹ֣מֶר בַּשָּׂדֶ֗ה לֹ֤א תָשׁוּב֙ לְקַחְתּ֔וֹ לַגֵּ֛ר לַיָּת֥וֹם וְלָאַלְמָנָ֖ה יִהְיֶ֑ה לְמַ֤עַן יְבָרֶכְךָ֙ יְהוָ֣ה אֱלֹהֶ֔יךָ בְּכֹ֖ל מַעֲשֵׂ֥ה יָדֶֽיךָ׃
Quando no teu campo fizeres a tua sega e esqueceres um molho no campo, não voltarás para tomá-lo; para o estrangeiro para o orfão, e para a viúva será, para que o SENHOR teu Deus te abençoe em todas as obras das tuas mãos.
Mishnah Peah
These are to be considered ends of the rows:If two men begin [to gather] from the middle of the row, one facing north and the other south and they forget [some sheaves] in front of them and behind them, those left in front of them are “forgotten,” but those left behind them are not “forgotten.” If an individual begins from the end of the row and he forgets [some sheaves] in front of him and behind him, those in front of him are not “forgotten”, whereas those behind him are “forgotten,” for this comes under the category of “you shall not go back [to retrieve it].” This is the general rule: anything that can be said to fall under the law “you shall not go back” is considered “forgotten,” but that to which the principle of “you shall not go back” cannot be applied is not considered “forgotten.”