Allah سبحانه وتعالى said: كُنْتُمْ خَيْرَ أُمَّةٍ أُخْرِجَتْ لِلنَّاسِ تَأْمُرُونَ بِالْمَعْرُوفِ وَتَنْهَوْنَ عَنِ الْمُنْكَرِ “You are the best Ummah to have been raised up for mankind, you command the Ma’roof and you forbid the Munkar” (Aali ‘Imraan 110) And He سبحانه وتعالى said: وَلْتَكُنْ مِنْكُمْ أُمَّةٌ يَدْعُونَ إِلَى الْخَيْرِ وَيَأْمُرُونَ بِالْمَعْرُوفِ وَيَنْهَوْنَ عَنِ الْمُنْكَرِ وَأُولَئِكَ هُمُ الْمُفْلِحُونَ “Let there be from you an Ummah calling to the Khair and commanding the Ma’roof and forbidding the Munkar and they are those who are the successful ones” (Aali ‘Imraan 104) Allah سبحانه وتعالى has requested the commanding of Ma’roof and the forbidding of the Munkar in these two Aayaat in addition to many others in the Qur’aan Al-Kareem. The request (Talab) has been connected by the indicator (by a Qareenah) that indicates decisiveness (Al-Jazm). This is the praise and commendation attached to those who undertake the commanding of the Ma’roof and
"Thoughts are the greatest wealth of any nation."