What prayer did the Prophet Muhammad (saw) wish he could reserve for the intercession of his Ummah on the Day of Resurrection?
 Abu Huraira reported:                      Verity the Messenger of Allah (may peace be upon him) said: There is for every apostle a (special) prayer with which he would pray. I wish I could reserve, my prayer for intercession of my Ummah on the Day of Resurrection.