For some captive missionaries etc.
Christians and Muslims claim to worship the same God. They both pray to the same. The difference is between Jesus and Muhammad and between the bible and the Koran. Faith will not settle the issue. It is time for reason to settle it. The Muslims and Christians who embrace knowledge of the world based on science and not on faith will have something better than a life after death. They will have a life before death. I don't believe in the power of prayer but I do believe that when there is a huge problem sometimes that is from the cosmos and when it's question is answered those who answer will become a little more cosmic when they rise to the challenge and the only way to answer a question of faiths is to see which one actually wins, and so I have to say don't pray. Take actions instead. Sorry, reality can only accept actions as payment at this time.