Be aware that measurements may change depending on who is ruling at any given moment.

This hadith discusses changes in the sa’ measurement over time. During the time of the Prophet, a sa’ was equal to one mudd plus one third of a mudd. However, during the reign of Caliph ‘Umar bin ‘Abdul ‘Aziz, this measurement was increased. This hadith is important because it shows how measurements can change over time and how different rulers can make decisions that affect people’s lives. It also teaches us that we should be aware that measurements may change depending on who is ruling at any given moment.