(O Prophet!) Tell those of My servants who believe that they should establish Prayer and spend out of what We have provided them with, both secretly and openly, before there arrives the Day when there will be no bargaining, nor any mutual befriending. (14:31)
Narrated by: Abdullah bin 'Umar
The Prophet ordered (Muslims) to give one Sa' of dates or one Sa' of barley as Zakat-ul-Fitr. The people rewarded two Mudds of wheat as equal to that.