"Ali, may Allah be pleased with him, used to give the people thickened grape juice into which flies would fall and not be able to get out again."
Sunan an-Nasa'i Book 51, Hadith 180
← Previous Hadith "Umar bin Al-Khattab, may Allah be pleased with him, wrote to us (saying): 'Cook your drinks until the share of the Shaitan is gone, for he has two (shares) and you have one.'"

Sunan an-Nasa'i Book 51, Hadith 179 Next Hadith → "I asked Sa'eed: 'What is the drink that 'Umar bin Al-Khattab, may Allah be pleased with him, regarded as permissible?' He said: 'That which has been cooked until two-third has gone and one-third is left.'"

Sunan an-Nasa'i Book 51, Hadith 181