وَعَنْهُ قَالَ: «نَهَى رَسُولُ اَللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَنْ بَيْعَتَيْنِ فِي بَيْعَةٍ»
The Messenger of Allah (sallallahu alayhi wa sallam) forbade two transactions combined in one.
Bulugh al-Maram 911, Book 7, Business Transactions, Hadith 22. 1 min read