بُلُوغُ الْمَرَامِ
Bulugh al-Maram 880
Business Transactions
عَنْ أَبِي هُرَيْرَةَ - رضى الله عنه - قَالَ: قَالَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -{ قَالَ اَللَّهُ: أَنَا ثَالِثُ اَلشَّرِيكَيْنِ مَا لَمْ يَخُنْ أَحَدُهُمَا صَاحِبَهُ, فَإِذَا خَانَ خَرَجْتُ مِنْ بَيْنِهِمَا } رَوَاهُ أَبُو دَاوُدَ, وَصَحَّحَهُ اَلْحَاكِمُ [1] .
Narrated Abu Hurairah (RA): Allah's Messenger (ﷺ) said: "Allah, the Most High, said, 'I am the third (partner) of two partners as long as one of them does not cheat the his companion. Then, if he cheats (his partner) I depart from them.'" [Reported by Abu Dawud and al-Hakim graded it Sahih (authentic)].
Sunnah.com reference: Book 7, Hadith 124