الذَّهَبُ بِالذَّهَبِ رِبًا إِلاَّ هَاءَ وَهَاءَ، وَالْبُرُّ بِالْبُرِّ رِبًا إِلاَّ هَاءَ وَهَاءَ، وَالشَّعِيرُ بِالشَّعِيرِ رِبًا إِلاَّ هَاءَ وَهَاءَ، وَالتَّمْرُ بِالتَّمْرِ رِبًا إِلاَّ هَاءَ وَهَاءَ "
Narrated Ibn Shihab: that Malik bin Aus said, "I was in need of change for one-hundred Dinars. Talha bin 'Ubaidullah called me and we discussed the matter, and he agreed to change (my Dinars). He took the gold pieces in his hands and fidgeted with them, and then said, "Wait till my storekeeper comes from the forest." `Umar was listening to that and said, "By Allah! You should not separate from Talha till you get the money from him, for Allah's Messenger (ﷺ) said, 'The selling of gold for gold is Riba (usury) except if the exchange is from hand to hand and equal in amount, and similarly, the selling of wheat for wheat is Riba (usury) unless it is from hand to hand and equal in amount, and the selling of barley for barley is usury unless it is from hand to hand and equal in amount, and dates for dates, is usury unless it is from hand to hand and equal in amount"
مواضع دراسته في كتب التخريج والشروح
فتح الباري شرح صحيح البخاريج٤ ص٤٤١·كِتَاب الْبُيُوعِ
عمدة القاري شرح صحيح البخاريج١١ ص٢٩٢·كتاب البيوع
الاعتبار في الناسخ والمنسوخج٢ ص٥٩٤·كِتَابُ الْبُيُوعِج٢ ص٥٩٤·كِتَابُ الْبُيُوعِ
إتحاف المهرة بالفوائد المبتكرة من أطراف العشرةج١٢ ص٣٦١·عُمَرَ بْنِ الْخَطَّابِ
تحفة الأشراف بمعرفة الأطرافج٨ ص١٠١·حرف العين