Muslims must know 4 matters

In the name of Allah most merciful the bestower of mercy
know may Allah have mercy on you that we Muslims are obligated to learn 4 matters

firstly         Knowledge ; which means awareness of Allah    awareness of his prophet                        awareness of the religion of Islam based on the evidence
secondly   Acting on it
third           Calling to it
fourth        Patiences with the harm that befalls due to it

Surat Al-`Aşr

By time,

Indeed, mankind is in loss,

Except for those who have believed and done righteous deeds and advised each other to truth and advised each other to patience.

Speech & action

Imam bukhree said That the religion consists of (both) speech and action 4 and this is due to the saying of Allaah: And they were commanded  The Murji’ah are a sect who uphold the belief of Irjaa’ (to hold that sins major or minor, do not affect faith and that faith neitherincreases nor decreases).

The first to call to this belief was Gheelaan ibn Abee Gheelaan, the Qadariyy. He was executed in 105H. They claim that actions are not part of faith, that people do not vary in faith, that faith does not increase or decrease and that one should declare himself a Believer without saying, ‘If Allaah wills.’
The Murji’ah are divided into three groups, as Shaykh ul-Islaam Ibn Taymiyyah has mentioned:

1.  Those who claim that faith is a condition of the heart only. 
2.   Those who claim that faith is merely verbal affirmation (i.e. the Karraamiiyyah).
3.  Those who claim that faith is only affirmation with the heart and tongue, but that action is necessary in addition to it. Al-Laalikaa’ee (d. 418H) reports in his Sharh

We are Anonymous. 

                                           We are Legion.
                                                              We do not forgive.
                                                                                       We do not forget.
                                                                       Expect us