Surah Hud, ayah 65

11:65

فَعَقَرُوهَا فَقَالَ تَمَتَّعُواْ فِي دَارِكُمۡ ثَلَٰثَةَ أَيَّامٖۖ ذَٰلِكَ وَعۡدٌ غَيۡرُ مَكۡذُوبٖ ٦٥

Fa'aqarūhā faqāla tamatta'ū fī dārikum thalāthata ayyāmin dhālika wa'dun ghayru makdhūb

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]."