Dog Touching Clothes
Being Najas for Salah and being Najas for eating / drinking are two separate matters. A dog’s saliva touching the clothes does not effect one’s wudu and neither does it render one’s Salah invalid. There is no religious injunction which points to this fact. Therefore, it is not Najas for Salah. When it comes to eating / drinking, we generally do not prefer meal where saliva of another person or animal has mixed. We prefer to wash such bowls and utensils. The same was expressed in those Ahadith pointing to washing of such bowls. This becomes a more serious concern specially if the dog is not domesticated. Scholars who consider the saliva of dog najas do so on the basis of the same ahadith. We interpret those ahadith differently.