"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.'" (Using translation from Nasāʾī 5722)
«لَا حَتَّى يَذْهَبَ ثُلُثَاهُ وَيَبْقَى الثُّلُثُ»