"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 Kurib: the freed slave of Ibn 'Abbas, that Maimuna bint Al-Harith told him that she manumitted a slave-girl without taking the permission of the Prophet. On the day when it was her turn to be with the Prophet, she said, "Do you know, O Allah's Apostle, that I have manumitted my slave-girl?" He said, "Have you really?" She replied in the affirmative. He said, "You would have got more reward if you had given her (i.e. the slave-girl) to one of your maternal uncles." - Sahih Bukhari 3:47:765 (read more)

"Offering condolences to a kaafir if one of his loved ones – a friend or relative – dies... Some of the scholars say that it is haraam to offer condolences to them, and some say that it is permissible. Some of them added further details and said that if that serves an interest, such as the hope that they may become Muslim and it may ward off their evil which could not be done except by offering condolences, then it is permissible, otherwise it is haraam." - Muhammad Saed Abdul-Rahman