It's never been a problem before, we've discussed what will happen when we have kids etc, and we agreed that although we will be raising little one to be muslim, one half of her family (mine) are extremely lapsed christians and therefore she can celebrate both eid and christmas. With the priviso of course that we explain what christmas is, why as muslims we do not see it as a religious event, but as a nice opportunity to visit grandparents/swap pesents/ eat nice food etc etc.
However things seem to have changed now our first baby is on the way (not even due till March!) and he seems to be backtracking a bit and suggesting it's not allowed within the islamic faith and from next year we should think about 'dropping it'. Which I understand if I was suggesting my parents took her to church or something, but they would never go against our religion like that, nor would we present it as a religious festival (at least until she is old enough to understand nativity plays etc at which point we teach religious tolerance ). Am just a bit upset as my parents would be DEVESTATED if we didn't go to them for christmas... they live a while away from us and while we see dh's parents all the time, it's really special when we see mine, and isn't family what christmas is all about anyway?
Probably a bit premature, I'm hoping he'll change his mind when we go to my parent's this year and he sees how fun and wonderful it is. But just a bit hormonal and upset.