Sunan Abi Dawud 3504
سنن أبي داود#3504Sahihحَدَّثَنَا زُهَيْرُ بْنُ حَرْبٍ، حَدَّثَنَا إِسْمَاعِيلُ، عَنْ أَيُّوبَ، حَدَّثَنِي عَمْرُو بْنُ شُعَيْبٍ، حَدَّثَنِي أَبِي، عَنْ أَبِيهِ، عَنْ أَبِيهِ، حَتَّى ذَكَرَ عَبْدَ اللَّهِ بْنَ عَمْرٍو قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لاَ يَحِلُّ سَلَفٌ وَبَيْعٌ وَلاَ شَرْطَانِ فِي بَيْعٍ وَلاَ رِبْحُ مَا لَمْ تَضْمَنْ وَلاَ بَيْعُ مَا لَيْسَ عِنْدَكَ " .
Narrated 'Amr b. Suh'aib: On his father's authority, said that his grandfather 'Abd Allah b. 'Amr reported the Messenger of Allah (ﷺ) as saying: The proviso of a loan combined with a sale is not allowable, nor two conditions relating to one transaction, nor profit arising from something which is not in one's charge, nor selling what is not in your possession
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 24:89