Sunan an-Nasa'i, Book 51, Hadith 69 (In-Book)

'Amr bin Shu'aib narrated from his father, from his grandfather, that: The Prophet [SAW] said: "What intoxicates in large amounts, a small amount of it is unlawful."

أَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ سَعِيدٍ، قَالَ حَدَّثَنَا يَحْيَى، - يَعْنِي ابْنَ سَعِيدٍ - عَنْ عُبَيْدِ اللَّهِ، قَالَ حَدَّثَنَا عَمْرُو بْنُ شُعَيْبٍ، عَنْ أَبِيهِ، عَنْ جَدِّهِ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏ "‏ مَا أَسْكَرَ كَثِيرُهُ فَقَلِيلُهُ حَرَامٌ ‏" ‏ ‏.‏

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