you who believe, take care of yourselves. Those who go astray will not harm you if you are rightly guided.” (Surah al-Mā’idah, 105)

Being rightly guided is only fully attained by fulfilling one’s obligations. Thus, when a Muslim fulfils his duty to enjoin right and forbid wrong, just as he fulfils his other obligations, the misguidance of those who go astray will not harm him. This is done sometimes in the heart, sometimes with the tongue, and sometimes with the hand.

As for doing so in the heart, it is obligatory in all circumstances, since no harm results from it. Whoever does not do so is not a believer, as the Prophet, may Allah bless him and grant him peace, said: “That is the lowest—or weakest—level of faith.” He also said: “Beyond that there is not a mustard seed’s worth of faith.” Ibn Masʿūd, may Allah be pleased with him, was asked: “Who is dead among the living?” He replied: “The one who neither recognizes right nor rejects wrong.” And this is