Tosefta for Deuteronomy 5:13

שֵׁ֤֣שֶׁת יָמִ֣ים֙ תַּֽעֲבֹ֔ד֮ וְעָשִׂ֖֣יתָ כָּֿל־מְלַאכְתֶּֽךָ֒׃

Six days shalt thou labour, and do all thy work;