"...If the party liable is mentally deficient, or weak, or unable Himself to dictate, Let his guardian dictate faithfully, and get two witnesses, out of your own men, and if there are not two men, then a man and two women, such as ye choose, for witnesses, so that if one of them errs, the other can remind her. The witnesses should not refuse when they are called on (For evidence)." - Quran 2:282 (read more)

"O Allah's Apostle! We asked you for mounts, but you took an oath that you would not give us any mounts; we think that you have forgotten your oath.' He said, 'It is Allah Who has given you mounts. By Allah, and Allah willing, if I take an oath and later find something else better than that. then I do what is better and expiate my oath.'" - Sahih Bukhari 7:67:427 (read more)

"There is scholarly consensus (ijma`) that zakat cannot be given to non-Muslims, as mentioned by Ibn al-Mundhir, Kasani, Ibn Qudama, Buhuti, and others. Muwaffaq Ibn Qudama, a great Hanbali Imam, says in his Mughni: We do not know of any difference of opinion among the people of knowledge (ahl al-`ilm) that zakat on wealth cannot be given to a kafir' Ibn al-Mundhir said, 'There is consensus of all those whose positions we know from the people of knowledge that a non-Muslim (dhimmi) cannot be given any zakat." - Shaykh Faraz Rabbani