I see repsonses here from Christian who think that Muslim morals are not valid since Islam is a "false doctrine."
Islam feels the same way about you, and it feels the same way about me as a Buddhist. It feels the same way about atheists and pagans. In short, the "false doctrine" answer is complete garbage.
Let's look at Buddhism, and put Christianity in the same place that Christians place Muslims:
1) You say, "thou shalt not murder." And this is only sometimes, for some people. Animals don't count. Buddhists say "I vow to undertake the training of refraining from killing." This means any sentient creature, no exceptions.
2) You say, "Thou shalt not steal." Buddhists say, "I will not accept what is not freely given."
3) You say, "It's a sin to get drunk." Buddhists say, "I will not take any alcohol or intoxicants."
So the list goes on. Don't hold Christianity up on a pedastal as the end-all be-all of morals. I assure you as a former Christian and having run the gamut of actually having practiced several religions: it isn't.
Religion is an awful source of morals. Positively awful. Morals and ethics must come from the mindset of what causes suffering to oneself or others and what brings about well-being for oneself and others. For everything one says is superior in his own religion, someone else can find something that is superior in their religious value system.
People's moral compasses are most certainly not guided by religion. If it were indeed the case, then any crisis of faith that comes along would send believers into a cascade of all sorts of bad behavior. As it stands, it's the certainty of their faith that sends believers into atrocious behavior. It isn't religion that lends one a moral compass. It's empathy. Religion provides the exceptions to morality.