אַל־תֹּ֘אמַ֤ר לרעיך [לְרֵֽעֲךָ֨ ׀] לֵ֣ךְ וָ֭שׁוּב וּמָחָ֥ר אֶתֵּ֗ן וְיֵ֣שׁ אִתָּֽךְ׃
Say not unto thy neighbour: ‘Go, and come again, And to-morrow I will give’; when thou hast it by thee.
Rashi on Proverbs
though you have it with you what to give to him. But our Sages explained: “Go and return” regarding the wages of a hireling.