What did the Prophet Muhammad (saw) say when he found out that the people of Medina had not yet prayed 'Isha'?
 Narrated `Aisha:                     Once Allah's Apostle delayed the `Isha' prayer till `Umar informed him that the women and children had slept. Then Allah's Apostle came out and said: "None from amongst the dwellers of earth have prayed this prayer except you." In those days none but the people of Medina prayed.