Hi, I want to learn a few things on ruling on donating money. 

1. If I have to give preference to someone on donating money first, what would be the order of preference, for eg between relatives, servants, unknown under-privileged people.
2. While donating money do I have to give preference to muslims over non-muslims? I would like to get this answer along with some reference from Quran or Hadith if possible.