[quote="Not_Sure, post:10, topic:275549"]
What about the first words of the Athanasian creed: In order to be saved, one must have the Catholic faith.
If anything, I have heard the explanation of invincible ignorance (the theory of how non-catholics can get to heaven) this way, if you know of the Catholic Church, and refuse to enter, you will not be saved. If you are in it, and decide to leave, you will not be saved.
The theoretical Indian,who never hears of the Church (a number that is getting less and less every day), would still have to live a life without mortal sin, in order to be saved. THere are no longer entire continents that have not heard of the Church, invincible ignorance is becoming more insignificant.
Muslims, most likely, have heard of the Catholic Church. Especially if they are no longer living in a Completely Muslim country. A Muslim who is born in the US, for example, probably cannot claim Invincible Ignorance in the last day.
Muslims have been misled about the nature of Christianity in the Qur'an. If, not through their own fault, they are unable to see through the veil of deception, they cannot be held accountable for rejecting the Catholic faith. They can be held accountable for not following God's will, as they are able to see an imperfect reflection of it in their Islamic faith and in their conscience, where through grace He reveals it to them.
God saves through the grace He gives in the sacraments of the Holy Catholic Church, but He is in no way limited and can save whoever accepts His grace, regardless of faith.
It is obviously difficult to be saved in a faith that misleads its followers about the true nature of God, but God will certainly look more kindly on any humble Muslim who would in a heartbeat have accepted His revelation had he not been misled than on a Catholic who had the True Faith but neglected or rejected it.