Mas’ala 2493الأمShafi'ivol. 1, p. 261vol. 1, p. 261 فَإِنْ تَقَدَّمَ فَعَلَيْهِ اسْتِئْنَافُ الصَّلَاةِ، Read the whole chapterCopy with source On the map: PrayerCompare