"I heard Sa'eed bin Al-Musayyab say, when a Bedouin asked him about a drink that had been cooked and reduced by half: 'No, not until two-third has gone and one-third is left.'"
Sunan an-Nasa'i Book 51, Hadith 184
← Previous Hadith He used to drink thickened grape juice that of which two-third had gone and one-third was left.

Sunan an-Nasa'i Book 51, Hadith 183 Next Hadith → "When At-Tila' (thickened grape juice) has been cooked and reduced to one-third, then there is nothing wrong with it."

Sunan an-Nasa'i Book 51, Hadith 185