Is a Muslim excused for being ignorant of the meaning of "La ilaha illa Allah" (There is no god but Allah), its obligations, conditions, nullifiers, and benefits, given the widespread heedlessness of many people regarding these details? Is knowledge of the implications of the testimony of Tawhid (Oneness of Allah) an individual obligation upon every Muslim, for which they are not excused by ignorance? And what is the priority I should begin with when inviting people with hardened hearts who do not pray: should I begin by introducing them to "La ilaha illa Allah" and its implications, or by stirring their hearts to feel the greatness of Allah? And if the latter, what are the effective means to achieve that?

The general Muslim populace is commanded to adhere to the established principles of belief from the Qur'an, Sunnah, and scholarly consensus (Ijma'). They are not burdened with learning detailed theological issues, nor are they obligated to memorize the creed with its proofs. Rather, sound belief is sufficient for them after having learned the evidence once, even if they later forget it. Thus, the faith of a common person who fulfills the conditions of "There is no god but Allah" is valid, even if they cannot enumerate or memorize these conditions well. Da'wah (calling to Allah) is best done through good example and applying the religion, while considering the circumstances of those being called and utilizing diverse and engaging methods. The focus should be on reminding people of the Creator's greatness and the meaning of the word of Tawhid (monotheism) and its implications.