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 (PBUH) 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."' Translation Not Available

Book Ref: Sunan Ibn Majah Book 12 Hadith 2289
Web Ref:  Sunan Ibn Majah Vol 3 Book 12 Hadith 2289