سورة الدخان

Ali ibn Ibrahim (may Allah have mercy on him): إِنَّ شَجَرَةَ الزَّقُّومِ* طَعَامُ الأَثِيمِ [Indeed the tree of Zaqqum is the food of the sinful] — it was revealed concerning Abu Jahl.

The Prophet (peace be upon him and his family): By the One in whose hand is the soul of Muhammad (peace be upon him and his family)! If a single drop of Zaqqum were to fall upon the mountains of the earth, those mountains would sink down beneath the seven earths and would not be able to bear that one drop; so how then can the one for whom Zaqqum is a drink [in Hell] endure it!

Imam Sadiq (peace be upon him): Whoever satisfies the hunger of a believer, Paradise becomes obligatory for him; and whoever satisfies the hunger of a disbeliever, it is incumbent upon Allah to fill his belly with zaqqum, whether he be a believer or a disbeliever.

Imam Baqir (peace be upon him): Allah has a fire in the east which He created to house the souls of the disbelievers therein; they eat from its zaqqum and drink from its scalding water at night. When dawn breaks, those souls are driven to a land in Yemen called Barahut, which is hotter than the fires of this world, and there they meet one another and recognize each other. When night falls, they return to that fire, and such will be their state until the Day of Resurrection.

Imam Ali (peace be upon him): When the zaqqum and dari' (a dry, bitter, foul-smelling thorn) boil in the bellies of the people of the Fire like the boiling of scalding water, they will ask for a drink. A drink of pus and putrid discharge will be brought to them, which they gulp down with difficulty and can hardly swallow willingly, and death will come to them from every direction, yet they will not die! And beyond that lies a severe punishment! (Ibrahim/17). And scalding water will be brought to them which has been boiling in Hell since the day Hell was created — like molten metal, it will scorch their faces! What an evil drink, and what an evil gathering place! (al-Kahf/29).