四分律行事鈔資持記 3.339

3.339

四中。獨簡石蜜。五人得者，若論非時，唯開有病；自餘時中，不許輒噉。

In the fourth: Exclusively exempting rock sugar. As for "five persons obtain it": if discussing untimelies, it is permitted only for the sick; during all other times, eating it casually is not allowed.