سَمِعْتُ أَبَا عَبْدِ اللَّهِ ع يَقُولُ وَ قَدْ سُئِلَ عَنِ الطِّلَاءِ فَقَالَ إِنْ طُبِخَ حَتَّى يَذْهَبَ مِنْهُ اثْنَانِ وَ يَبْقَى وَاحِدٌ فَهُوَ حَلَالٌ وَ مَا كَانَ دُونَ ذَلِكَ فَلَيْسَ فِيهِ خَيْرٌ.
‘If it is cooked and boiled until its two-thirds have evaporated and only one-third has remained it then is lawful for use and if it has evaporated less it is devoid of goodness.’”