11.29 [Machine] Who considers the option of making up for his fast even if he didn't eat or drink, and the hadith of the ruling regarding fasting on Ashura suggests that it may be obligatory in the year in which one ate and the year in which one did not eat, and it may be otherwise, and they differed as to whether it is obligatory in principle.

١١۔٢٩ بَابُ مَنْ رَأَى إِعَادَةَ صَوْمِهِ وَإِنْ لَمْ يَأْكُلْ وَلَمْ يَشْرَبْ وَحَدِيثُ الْأَمْرِ بِالْقَضَاءِ فِي صَوْمِ عَاشُورَاءَ يَحْتَمِلُ أَنْ يَكُونَ عَامًا فِي الَّذِي أَكَلَ وَالَّذِي لَمْ يَأْكُلْ , وَيُحْتَمَلُ غَيْرُ ذَلِكَ , وَقَدِ اخْتَلَفُوا فِي كَوْنِهِ وَاجِبًا فِي الْأَصْلِ