[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