“Then there is a great deal to say about discrimination against women. In spite of the fact that women don’t differ from men except physiologically, and possess the same intellectual abilities, and in some instances even surpass men in such gifts, women in Islam are considered as ‘deficient in mind and religion.’ The testimony of a woman in the courts is worth only half a man’s testimony. The same thing pertains in matters of inheritance, for a ‘man’s portion is worth as much as two women’s portions.’ When it comes to the rights of a divorced woman, her husband is responsible for her needs for three months only. In fact, a woman’s status is on par with animals. This classification is supported by an authentic hadith, ‘A man’s prayer is nullified when a dog, or a donkey, or a woman, happens to pass by.’ Please tell me, is this a manifestation of a spirit of tolerance?
The above is from is an interesting article that examines tolerance in Islam. You can read the whole text here