(53) باب ذِكْرِ مَا يَجُوزُ شُرْبُهُ مِنَ الطِّلاَءِ وَمَا لاَ يَجُوزُ
It was narrated that Sa'eed bin Al-Musayyab said:
"When At-Tila' (thickened grape juice) has been cooked and reduced to one-third, then there is nothing wrong with it."
Reference: Sunan an-Nasa'i 5723
In-book reference: Book 51, Hadith 185
English translation: Vol. 6, Book 51, Hadith 5726