سورة الحج

Ali ibn Ibrahim (may Allah have mercy on him): The verse وَ مِنَ النَّاسِ مَنْ یُجادِلُ فِی اللهِ بِغَیْرِ عِلْمٍ وَ لا هُدیً وَ لا کِتابٍ مُنِیرٍ [And among men there is he who disputes about Allah without knowledge and without guidance and without an illuminating book] was revealed concerning Abu Jahl.

Imam Sadiq (peace be upon him and his family): One who makes a display of reciting the Qur'an without possessing the [requisite] knowledge is like a person afflicted with self-admiration and self-praise while having neither wealth nor property; such a person hates others because of his poverty, and others hate him because of his self-conceit, so he is forever in dispute and quarrel with people without cause, and whoever quarrels with others without cause, without being charged with such a task, has in truth contended with the Creator and Lord. Allah the Mighty and Majestic has said: وَ مِنَ النَّاسِ مَنْ یُجادِلُ فِی اللهِ بِغَیْرِ عِلْمٍ وَ لا هُدیً وَ لا کِتابٍ مُنِیرٍ* ثانِیَ عِطْفِهِ [And among men there is he who disputes about Allah without knowledge and without guidance and without an illuminating book, turning away haughtily]. And no one's punishment and torment [on the Day of Resurrection] is more severe than that of the person who has put on the false garb of worship and asceticism while in his being there is nothing of the true signs and marks of asceticism and worship.