This view – that there is no denunciation with regard to matters concerning which the scholars differed – has become the greatest means of preventing the enjoining of what is good and the forbidding of what is evil, which are of a high status as you know. It been enjoined and made obligatory upon this ummah by Allaah and His Messenger (peace and blessings of Allaah be upon him) to enjoin that which is good according to sharee’ah and forbid that which is evil according to sharee’ah, and the measure of that is the Qur’aan and Sunnah. Every Muslim should enjoin that which he finds is regarded as good in both or either of them, and he should forbid that which he finds is regarded as evil in both or either of them.
If any scholar says something that differs from that, then his words are to be rejected and he is to be denounced, as is the one who follows his view.
This noble sharee’ah, in which we are commanded to enjoin that which it describes as good and denounce that which it describes as evil, is that which is found in the Qur'aan and Sunnah. End quote from al-Sayl al-Jaraar (4/588).