Is a person excused for his ignorance regarding tawhid (the oneness of Allah)?

Question:
May Allah reward you with good. The questioner asks: Is a person excused for his ignorance regarding tawhid (the oneness of Allah)?

Answer:
A person is not excused for ignorance regarding tawhid (the oneness of Allah), because tawhid is clear. Tawhid is clear in the Qur'an and the Sunnah. Whoever reads the Qur'an and the Sunnah knows tawhid. It is clear. No one is excused for ignorance. Rather, the one who is excused for ignorance is the one who is isolated, to whom the Qur'an has not reached, and to whom the Sunnah of the Messenger of Allah (peace and blessings be upon him) has not reached, and nothing has reached him. This person is excused. But the one who has heard the Qur'an and heard the Sunnah of the Messenger of Allah (peace and blessings be upon him), he is not excused in the apparent matters, such as tawhid. He may be excused in some obscure matters that are ambiguous; he may be excused in those. But in these clear matters, he is not excused.