Mas’ala 4503مختصر المزنيShafi'ivol. 1, p. 352vol. 1, p. 352 وَكَذَلِكَ قَدَمَانِ فِي سَاقٍ فَإِنْ اسْتَوَتَا فَهُمَا نَاقِصَتَانِ، Read the whole chapterCopy with source On the map: Injuries and retaliationCompare