kufr

Rejecting the Sunnat of Nikaah

Q: There's a thing that is bothering me so much. A friend of mine hates marriage. Once there was a chart in my college that listed the sunnahs of Ambiya, one of them was nikah. She didn't believe that it was a sunnah, we told her that it was. Afterwards she jokingly said that she will cut this off the chart. Is this kufr? If this is indeed kufr and takes her out of the fold of Islam, she is going to be super offended and likely to throw a tantrum because nowadays people don't even know things that are kufr. How do I explain this to her?

Doing magic on oneself

Q: I have a question about magic and attempting to use it or even having another black magician do certain magic on myself. I know this is a form of shirk and engaging in magic takes a person outside the fold of Islam. Does this mean I am no longer a Muslim and is it something that can be forgiven? What do I need to do? 

Breaking oaths in the state of kufr

Q: This is a three-part question related to vows/oaths. There is an individual who committed kufr (he started believing in human evolution, i.e. human beings evolved from other hominid species), but later returned to Islam.

1. The oaths that he took, and later broke, prior to committing kufr. Do these fall off (i.e. he does not have to pay kaffarah for them) because he committed kufr, and kufr wipes away all of one's past deeds (good and bad)?

2. The oaths that he took (in the state of kufr) and later broke (also in the state of kufr). Do these also fall off (i.e. he does not have to pay kaffarah for them) because he broke those oaths in a state of kufr?

3. The oaths that he took in the state of kufr, but later broke AFTER returning to Islam. Do these also fall off (i.e. he does not have to pay kaffarah for them) because he took those oaths in a state of kufr?