Sahih Bukhari
Virtues of the Prayer Hall (Sutra of the Musalla)
Volume: 001 / Book Number: 009 / Hadith Number: 498
Narrated 'Aisha:
It is not good that you people have made us (women) equal to dogs and donkeys. No doubt I saw Allah's Apostle praying while I used to lie between him and the Qibla and when he wanted to prostrate, he pushed my legs and I withdrew them.