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Mas’ala 4015المهذبShafi'ivol. 7, p. 249vol. 7, p. 249

ويحرم عليه لبس القميص لِمَا رَوَى ابْنُ عُمَرَ رَضِيَ اللَّهُ عَنْهُمَا إنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ في المحرم (لا يلبس الْقَمِيصَ

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Its commentaries

المجموع شرح المهذبal-Nawawi

its words on this mas’ala come with mas’ala 4011 before it

A number in a circle: a mas’ala the commentary adds, numbered through it. In bold: the text’s own words inside the commentary.