Tossefta sur Le Deutéronome 24:19

כִּ֣י תִקְצֹר֩ קְצִֽירְךָ֨ בְשָׂדֶ֜ךָ וְשָֽׁכַחְתָּ֧ עֹ֣מֶר בַּשָּׂדֶ֗ה לֹ֤א תָשׁוּב֙ לְקַחְתּ֔וֹ לַגֵּ֛ר לַיָּת֥וֹם וְלָאַלְמָנָ֖ה יִהְיֶ֑ה לְמַ֤עַן יְבָרֶכְךָ֙ יְהוָ֣ה אֱלֹהֶ֔יךָ בְּכֹ֖ל מַעֲשֵׂ֥ה יָדֶֽיךָ׃

Quand tu feras la moisson de ton champ, si tu as oublié dans ce champ une javelle, ne retourne pas la prendre, mais qu’elle reste pour l’étranger, l’orphelin ou la veuve, afin que l’Éternel, ton Dieu, te bénisse dans toutes les œuvres de tes mains.

Tosefta Peah

[There are] four gifts [for the poor] from the vineyards: Peret*i.e., grapes that fall during harvesting (see Lev. 19:10, Peah 7:3), forgotten sheaves*see Deut. 24:19, peah*see Lev. 23:22, and olelet*i.e., defective clusters (see Lev. 19:10, Peah 7:4). [There are] three [gifts for the poor] from field-produce: Gleanings*see Lev. 19:9, forgotten sheaves, and peah. [There are] two [gifts for the poor] from fruit trees: forgotten sheaves and peah. [And as to] all of these, they should not [be given as] a favor, and [others] can even take [gifts for the poor given as a favor] from a Jewish poor person from his hand (i.e., since it does not lawfully belong to him in the first place). And [as to] the remainder of the priestly gifts, such as the shankbone and the jawbone and the rough-stomach (see Deut. 18:3), these may be [given as] a favor. And we give [these] to every Kohen that desires [them].