“We broke our fast on a cloudy day at the time of the Messenger of Allah ﷺ, then the sun appeared.” I (one of the narrators) said to Hisham: "Were they commanded to make up for that day?" He said: "It had to be made up." (According to Hisham's opinion).
أَفْطَرْنَا عَلَى عَهْدِ رَسُولِ اللَّهِ ﷺ فِي يَوْمِ غَيْمٍ ثُمَّ طَلَعَتِ الشَّمْسُ قُلْتُ لِهِشَامٍ أُمِرُوا بِالْقَضَاءِ؟ قَالَ لاَ بُدَّ مِنْ ذَلِكَ