Hud 11:65

FaAAaqarooha faqalatamattaAAoo fee darikum thalathata ayyamin thalikawaAAdun ghayru makthoob

But they hamstrung her, so he said, "Enjoy yourselves in your homes for three days. That is a promise not to be denied [i.e., unfailing]."

Then they slaughtered her. So, he said, “Enjoy yourselves in your homes for three days (only). That is a promise, not to be backed out.”