Aqaaid

Committing oneself to following one Imaam

Q: We respect the four imams and we follow the teachings of Muhammad (sallallahu alaihi wasallam) and Quran. There are very mild differences in Namaz as said by the 4 imams with their proofs in hadith. Now I pray without rafadayn and my hands are not on my chest while standing. So does it mean that I'm praying the wrong way, because I see in Saudi Arabia they do rafadayn and have hands on chest. Please help me and make my salah better.

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? 

Doubts regarding kufr

Q: Does saying words like 'I knew this would happen' or 'they knew she would say that' considered kufr? What about if the one who says this says it just as a prediction, and does not intend to mean that they have knowledge of the unseen?