Al-Kāfi - Volume 6 > AI-Fuqa’ (Beer)
Hadith #3

مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ عِيسَى عَنْ مُحَمَّدِ بْنِ سِنَانٍ عَنْ حُسَيْنٍ الْقَلَانِسِيِّ قَالَ كَتَبْتُ إِلَى أَبِي الْحَسَنِ الْمَاضِي ( عليه السلام ) أَسْأَلُهُ عَنِ الْفُقَّاعِ فَقَالَ لَا تَقْرَبْهُ فَإِنَّهُ مِنَ الْخَمْرِ .

3. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from Muhammad ibn Sinan from Husayn al-Qalanisiy who has said the following: “Once I asked abu al-Hassan, al-Madiy, ‘Alayhi al-Salam, in writing and asked about al-Fuqa ’ (beer). He (the Imam) wrote to me saying, ‘Do not go close to it; it is wine.’”