Mas’ala 2502المبسوطHanafivol. 1, p. 231vol. 1, p. 231 وَإِنْ لَمْ يَفْعَلْ فَصَلَاتُهُ فَاسِدَةٌ، Read the whole chapterCopy with source On the map: PrayerCompare