Idris al-Khawlāni narrated that Muʿādh Bin Jabal Allah be pleased with him, said in one of his sermons:
"Coming your way are awful trials were money will be aplenty, and the Qur'an will be read by the believer as well by the hypocrite, the young and the old, the strong and the weak, and people from all nations will read the Qur'an. A man rehearsing the Qur'an in public will be astounded and bewildered as he says to himself, 'How is it that I happen to be reading the divinely revealed Qur'an, and people seem to neither heed, nor would they comply with its admonitions?'
Muʿādh further continued: "O people! Beware, beware of innovations, for innovations lead to straying from the right path."
"I also warn you about the potential aberration of a scholar, or the possible blunder of a teacher, for it is possible that a wise man's own Satan utters a misleading statement through him, while it is also possible that a hypocrite speaks a word of truth. Therefore, accept only the truth, for truth is a radiant light."
Someone asked: "How are we to know whether a wise man is right or wrong?" Muʿādh replied: "A wise man may utter a word in error, and you will feel uncomfortable with it. You will say to yourselves, 'What is this?' Therefore, do not feel awkward about questioning it, and perhaps he will retract his expression on his own when he recognizes what you already know, and he may change his opinion. Knowledge and faith are indeed an effulgent light, and their clarity and distinctiveness will remain radiant thus until the Day of Resurrection. Therefore, whosoever seeks true knowledge and faith with sincerity and perseverance, he will surely find them."
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