KHULTIN خلطين
An infusion of dates and raisins, boiled together until they ferment and become spiritous, but of which a Muslim can drink without impropriety or sin. This is grounded on a circumstance relative to Ibn Ziyad, which is thus related by himself: “Abdu ‘llah, the son of ‘Umra, having given me some sherbet to drink, I became intoxicated to such a degree that I knew not my own house. I went to him next morning, and, having informed him of the circumstances, he acquainted me that he had given me nothing but a drink composed of dates and raisins. Now this was certainly khultin, which had undergone the operation of boiling; because it is elsewhere related by ‘Umar that it is unlawful in its crude state.” (Hidayah, vol. iv. p. 161.)
An infusion of dates and raisins, boiled together until they ferment and become spiritous, but of which a Muslim can drink without impropriety or sin. This is grounded on a circumstance relative to Ibn Ziyad, which is thus related by himself: “Abdu ‘llah, the son of ‘Umra, having given me some sherbet to drink, I became intoxicated to such a degree that I knew not my own house. I went to him next morning, and, having informed him of the circumstances, he acquainted me that he had given me nothing but a drink composed of dates and raisins. Now this was certainly khultin, which had undergone the operation of boiling; because it is elsewhere related by ‘Umar that it is unlawful in its crude state.” (Hidayah, vol. iv. p. 161.)
Based on Hughes, Dictionary of Islam