What to say after Taslim from the prayer

 312. Warrad, the freed slave of Mughirah bin Shu´bah reported that Mughriah bin Shu´bah wrote to Mu´awiyah: When the Messenger of Allah sallahu alayhi wa sallam finished the prayer and called Taslim he uttered (this supplication): ´´La ilaha illallah, wahdahu la sharika lahu, lahul-mulku wa lahul-hamdu, wa Hawa ´ala kuli sha´in Qadir. Allahumma la mani´a lima a ´taita, wa la mu´tiya lima mana´ta, wa la yanfa´u dhal-jaddi minkal-jadd- (There is no true God except Allah Alone having no partner. To Him belong the dominion, and the praise, and He has power over everything. O Allah, there is none to withhold what You give, nor is there any to give what You withhold, and the riches of the rich does not avail against You).´´