Mas’ala 1775مختصر المزنيShafi'ivol. 1, p. 206vol. 1, p. 206 فَإِنْ صَدَّقَهُمَا الْمُحْتَالُ أَوْ قَامَتْ بِذَلِكَ بَيِّنَةٌ انْتَقَضَتْ الْحَوَالَةُ. Read the whole chapterCopy with source On the map: Transfer of debtCompare