well hadith is hearsay of ppl of what prophet said..so i doubt its alwayz 100% accurate..if it doesnt forbid keeping dogs in the quran than dont worry about it..
Do you know that quran was compiled exactly the way Hadith books were complied. Sahaba listened to Prophet reciting an ayaat or surat, and they memorized it ..
later, during the time of Khulfa-e-Rashedeen, a commitee collected those ayaat from Sahaba's and compiled as Quran
So your arguement about doubting the accuracy of hadith holds true for the accuracy of Quran also, so should we stop believing quran also?