`Abd ar-Rahman ibn Dawud

حَدَّثَنَا الْحَسَنُ بْنُ عَلِيٍّ الْخَلاَّلُ، حَدَّثَنَا بِشْرُ بْنُ ثَابِتٍ الْبَزَّارُ، حَدَّثَنَا نَصْرُ بْنُ الْقَاسِمِ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ دَاوُدَ، عَنْ صَالِحِ بْنِ صُهَيْبٍ، عَنْ أَبِيهِ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ ‏ "‏ ثَلاَثٌ فِيهِنَّ الْبَرَكَةُ الْبَيْعُ إِلَى أَجَلٍ وَالْمُقَارَضَةُ وَإِخْلاَطُ الْبُرِّ بِالشَّعِيرِ لِلْبَيْتِ لاَ لِلْبَيْعِ ‏"‏ ‏.‏

lt was narrated from Salih bin Suhaib that his father said:"The Messenger of Allah (ﷺ) said: 'There are three things in which there is blessing: A sale with deferred payment; Muqaradhah (profit sharing); and mixing wheat with barley for one's house, but not for sale