Gotta have the Trinity.I tell you what I told one of my Christian colleagues who once said to me: "No difference between us whether Christians or Muslims!"
I said: "No difference in citizenship, in salary in justice and in common rights... true. But if you do not believe in God as One (not Trinity) and in the Quran, then you will lose in the Hereafter."
So he resented and was angry and could not withstand this; even he told me to go out of his room.
Few months later, I asked his relative about him, who said: that one died.
I praised God that I answered him like that, because he might have taken it as a plea before God and said: they told me no difference. and I would have been responsible for that.