كتاب البيوع
Read the English translation first, with the original Arabic directly underneath.
Narrated Al-Nu'man b. Bashir:
I heard Messenger of Allah (ﷺ) say: But between them are certain doubtful things which many people do not recognize. He who guards against doubtful things keeps his religion and his honor blameless, but he who falls into doubtful things falls into what is unlawful.
وَبَيْنَهُمَا مُشَبَّهَاتٌ لا يَعْلَمُهَا كَثِيرٌ مِنَ النَّاسِ فَمَنِ اتَّقَى الشُّبُهَاتِ اسْتَبْرَأَ عِرْضَهُ وَدِينَهُ وَمَنْ وَقَعَ فِي الشُّبُهَاتِ وَقَعَ فِي الْحَرَامِ