The statement regarding the interpretation of His statement, Almighty: {then fear the Hellfire, whose fuel is men and stones}

Abū Jaʿfar said: He, majestic is His praise, means by His statement "then fear the Hellfire", He says: then fear that you will burn in the Hellfire due to your denial of My Messenger regarding what he brought to you from Me, that it is from My revelation and My revelation, after it has become clear to you that it is My Book and from Me, and the establishment of the proof against you that it is My speech and My revelation, through your inability and the inability of all My creation to bring the like of it.

Then He, majestic is His praise, described the Hellfire which He warned them against burning in, so He informed them that men are its fuel, and that stones are its fuel, so He said: "whose fuel is men and stones", meaning by His statement: "its fuel" (waqūduhā) its firewood, and the Arabs make it a verbal noun (maṣdar) while it is a noun, if the wāw is pronounced with a fatḥah, in the position of firewood.

But if the wāw of "al-wuqūd" is pronounced with a ḍammah, it is a verbal noun from the statement of the speaker: waqadat al-nāru fahiya taqidu wuqūdan wa-qidatan wa-waqadānan wa-waqdan (the fire ignited, so it ignites with an ignition), meaning by that it flared up.

So if a speaker says: And how were stones singled out and coupled with men, such that they were made firewood for the fire of Hell?