There can be no righteous deed in the absence of knowledge ('ilm) and understanding of the law (fiqh), as 'Umar ibn Abdul-Aziz (the grandson of 'Umar ibn Al-Khattab, and a righteous Khalifa) used to say:
"Whoever worships Allah without knowledge corrupts more than he benefits."
And, as in the statement of Muadh ibn Jabal (a companion of the Prophet):
"Knowledge is the imam of action, and action is a corollary to it."
This is obvious: intentions and actions which are not based on knowledge are ignorance and going astray, and following of hawaa, as we have said before. This is the difference between the people of Jahiliya, and the people of Islam. Thus, knowledge of the Ma'ruf and the Munkar are absolute necessities as are the ability to distinguish between them, and knowledge of the condition of those to be ordered and forbidden is also essential.
For optimum benefit, enjoining and forbidding should be performed on the Straight Path. The Straight Path is the shortest route, and the one which leads to the attainment of the sought-after goal.
Enjoining Right: Our Prophet And Those Before Him
This Nation Is The Best Nation For The People
What Is Maruf (right) And Munkar (wrong)?
Let Your Enjoining Of Good Be Itself Good
Benefits Must Outweigh Negative Consequences
Methodology Of Enjoining Right And Forbidding Wrong
Pitfalls Of Enjoining Right And Forbidding Wrong
Rebellion Against The Imam Of The Muslims
The General Principle Of Enjoining And Forbidding
It Is Obligatory To Measure All Things By The Criterion Of The Shariah
The Love Of Good Should Be In Harmony With What Allah Loves
The Love And Hate Of The Heart
What Exactly Is Hawaa
The Following Of Hawaa In The Previous Religions
What A Person Loves And Hates Must Be In Accordance With The Order Of Allah And His Prophet
What Are "good Works"?
Action Is Not Possible Except With Knowledge And Understanding
Compassion, Patience & Forbearance Are Required In Enjoining Right
The Difficulty Of These Requirements
Disobedience To Allah Causes Difficulty, Obedience Causes Ease
Allah's Punishment Of The Previous Nations For Their Disobedience
Punishment Of The Evil-doers In This World And The Next
Promises And Threats Of Punishment Were The First Part Of Revelation
Differences About Enjoining & Forbidding Are The Cause Of Division
Sins Are Desired By Human Nature
Greed Is The Cause Of Slipping Into Deviation
Types Of Sins
Success In Worldly Affairs Is By Justice
Human Nature: Tyranny, Envy & Oppression
Good Must Support Good As Bad Supports Bad
The Severity Of The Test Causes Elevation Of Rank
The Need For Certainty Of Belief
Human Affairs Will Not Go Straight Except With Courage And Generosity
A Return To Patience And Its Types
The Forbiddance Of Transgressing The Bounds
Fervour And Courage Which Is Praiseworthy
Fear Of Falling Into Temptation As An Excuse For Neglecting Enjoining Right
The Sons Of Adam Do Not Live Except In Societies
Pure Intention To Please Allah Is Required In All Righteous Deeds
The Meanings Of Islam
The Meaning Of Submitting One's Face To Allah
Definition Of Righteous Action
The Meaning Of The "sunnah" In The Discourses Of The Salaf