"The punishment of those who wage war against Allah and His Messenger, and strive with might and main for mischief through the land is: execution, or crucifixion, or the cutting off of hands and feet from opposite sides, or exile from the land: that is their disgrace in this world, and a heavy punishment is theirs in the Hereafter;" - Quran 5:33 (read more)

"Narrated 'Aisha: that the Prophet married her when she was six years old and he consummated his marriage when she was nine years old, and then she remained with him for nine years (i.e., till his death)." - Sahih Bukhari 7:62:64 (read more)

"The Shafi´ites, Hanbalites and Malikites say: The verdict for the female apostate is the same as for the male. She must be called on to return to Islam for three days, prior to her death, for an evil-doer may have confused her understanding; thus the possibility exists for her being released from her confusion. Offering the apostate a time limit for repentance has been approved." - Abdurrahmani'l-Djaziri