How often should one say, "Glory be to Allah," "Praise be to Allah," and "Allah is most Great," after every prayer according to Allah's Messenger (peace be upon him)?
 Ka'b b. 'Ujra reported Allah's Messenger (may peace be upon him) as saying:                      There are certain ejaculations, the repeaters of which or the performers of which at the end of every prayer will never be caused disappointment:" Glory be to Allah" thirty-three times," Praise be to Allah" thirty-three times, and" Allah is most Great" thirty-four times.