بُلُوغُ الْمَرَامِ
Bulugh al-Maram 799
Business Transactions
وَعَنْهُ قَالَ: { نَهَى رَسُولُ اَللَّهِ - صلى الله عليه وسلم -عَنْ بَيْعَتَيْنِ فِي بَيْعَةٍ } رَوَاهُ أَحْمَدُ, وَالنَّسَائِيُّ, وَصَحَّحَهُ اَلتِّرْمِذِيُّ, وَابْنُ حِبَّانَ [1] .
Narrated [Abu Hurairah (RA)]: Allah's Messenger (ﷺ) forbade two transactions combined in one. [Reported by Ahmad and an-Nasa'i. at-Tirmidhi and Ibn Hibban graded it Sahih (authentic)].
Sunnah.com reference: Book 7, Hadith 22