5519An NasaiSahih (Darussalam)أَخْبَرَنَا أَحْمَدُ بْنُ خَالِدٍ، عَنْ مَعْنٍ، قَالَ حَدَّثَنَا مُعَاوِيَةُ بْنُ صَالِحٍ، عَنْ يَحْيَى بْنِ سَعِيدٍ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، قَالَ إِذَا طُبِخَ الطِّلاَءُ عَلَى الثُّلُثِ فَلاَ بَأْسَ بِهِ .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 : Book 51, Hadith 185 English translation : Vol. 6, Book 51, Hadith 5726