[Machine] That the Prophet prohibited the sale and loan, and he prohibited two sales in one sale, and he prohibited profiting from something that is not guaranteed.  

أَنَّ النَّبِيَّ ﷺ نَهَى عَنْ بَيْعٍ وَسَلَفٍ وَنَهَى عَنْ بَيْعَتَيْنِ فِي بَيْعَةٍ وَنَهَى عَنْ رِبْحِ مَا لَمْ يُضْمَنْ