[Machine] The Messenger of Allah ﷺ said, "Any condition that is not mentioned in the Book of Allah is invalid, even if it is a hundred conditions."  

قَالَ رَسُولُ اللهِ ﷺ مَا كَانَ مِنْ شَرْطٍ لَيْسَ فِي كِتَابِ اللهِ فَهُوَ بَاطِلٌ وَإِنْ كَانَ مِائَةَ شَرْطٍ  

"The Messenger of Allah forbade lending on the condition of a sale, selling what you do not have, and profiting on what you do not possess. (Using translation from Nasāʾī 4631)   

أَنَّ رَسُولَ اللهِ ﷺ نَهَى عَنْ سَلَفٍ وَبَيْعٍ وَعَنْ شَرْطَيْنِ فِي بَيْعٍ وَعَنْ بَيْعِ مَا لَيْسَ عِنْدَكَ وَعَنْ رِبْحِ مَا لَمْ يُضْمَنْ  

[Machine] He has an age that no one can reach, and there is a condition in it for someone.  

لَهُ عُمَرُ لَا تَقْرَبْهَا وَفِيهَا شَرْطٌ لِأَحَدٍ  

[Machine] That Abdullah bin Umar used to say: "A man should not step on a baby animal without deciding whether he wants to sell it, give it as a gift, or do whatever he wants with it."  

أَنَّ عَبْدَ اللهِ بْنَ عُمَرَ كَانَ يَقُولُ لَا يَطَأُ الرَّجُلُ وَلِيدَةً إِلَّا وَلِيدَةً إِنْ شَاءَ بَاعَهَا وَإِنْ شَاءَ وَهَبَهَا وَإِنْ شَاءَ صَنَعَ بِهَا مَا شَاءَ  

[Machine] To tread a vagina, but only if wished and gifted, and if desired sold, and if wished freed, there is no condition in it.  

أَنْ يَطَأَ فَرْجًا إِلَّا فَرْجًا إِنْ شَاءَ وَهَبَهُ وَإِنْ شَاءَ بَاعَهُ وَإِنْ شَاءَ أَعْتَقَهُ لَيْسَ فِيهِ شَرْطٌ