The Invalidators of Islam
You should know, dear Muslim brother/sister , that Allah made it obligatory upon all His slaves to enter Islam and hold on to it, and warned them against following other than Islam. He also sent His Prophet Muhammad to call mankind to it.
Allah has informed us in the Quran that guided are those who follow the teachings of Islam, and misguided are those who reject them. He warned us in many Verses against the causes of apostasy and all forms of Shirk and disbelief Religious scholars have mentioned that there are a number of invalidators that are bound to take one out of the fold of Islam.
For the sake of attaining salvation in the Hereafter, I have briefly cited in the following pages, with some explanation, the ten most critical of these invalidators so that you will avoid them and make others aware of them.
1 . To associate others with Allah in worship.
The Quran says:
"Allah forgives not (the sin of) setting up partners with Him in worship, but He forgives whom He pleases other sins than this." (Soorah 4: 1)
"Whoever sets up partners with Allah in worship, Allah will forbid him Paradise, and the Fire will be his abode. For the wrongdoers there are no helpers." (Soorah 5:72)
Forms of worship include calling upon the dead, seeking their assistance, offering sacrifices to them, and taking vows in their names.