TIRMIDHI 1234:
from Abīh Ḥattá Dhakar ʿAbdullāh b. ʿAmr —
'Amr bin Shu'aib narrated to us, saying: My father narrated to me from his father' until he mentioned 'Abdullah bin 'Amr: "The Messenger of Allah ﷺ said: 'It is not lawful to lend and sell, nor two conditions in a sale, nor to profit from what is not possessed, nor to sell what one does not have.'"
الترمذي ١٢٣٤:
عن ابيه حتى ذكر عبد الله بن عمرو —
أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ يَحِلُّ سَلَفٌ وَبَيْعٌ وَلاَ شَرْطَانِ فِي بَيْعٍ وَلاَ رِبْحُ مَا لَمْ يُضْمَنْ وَلاَ بَيْعُ مَا لَيْسَ عِنْدَكَ
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