Good question. If you get an answer, please let me know.
Seriously.
Thanks and regards,
http://www.islamicconcern.com/dogs.asp
It doesn't actually answer the question, altho it might be of interest to anyone wondering about dogs and Islam. However, it also contains this interesting but disconcerting passage:
All of creation is Muslim, submitting to Allahs willonly man and jinn are granted a freedom of choice. So yes, even animals are Muslim.
In the Holy Quraan (S4:36) we are advised to do good to what your right hands own According to the commentator Imaam Faghruddin al-Rhazi, this refers to all those who have no civil rights, including animals. Thus, the verse lays down the duty of being good toward animals.
Is this passage suggesting that some people have no civil rights?