Ways of Transferring Najāsah
Issue No.143- If something ṭāhir comes in contact with a najis object and one of them is wet, the ṭāhir object will become najis. However, if both are dry or the wetness is so little that it does not reach the other, the ṭāhir object will remain ṭāhir (unless it touches the dead body of a human being before the ghusl of dead body has been performed on it; in this case, the obligatory precaution is to avoid it even though it is dry).