مشكوة المصابيح
Mishkat al-Masabih
كتاب الحدود
The Book of Legal Punishments
(خَلُّ الخَمْرِ أَيْضًا حَرَامٌ)
(The vinegar of wine is also forbidden)
Hadith 3641
وَعَنْ أَنَسٍ أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ سُئِلَ عَنِ الْخَمْرِ يُتَّخَذُ خَلًّا؟ فَقَالَ: «لَا» . رَوَاهُ مُسلم
Anas told that the Prophet was asked about wine which was turned into vinegar* and forbade it. Muslim transmitted it. * This is said to have been done by putting onions or salt in it, or by placing it in the sun.
