It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that the Noble Prophet, peace and blessings be upon him, said: Hell complained to its Lord, saying: O my Lord! Some parts of me are consuming other parts, so allow me to breathe. Allah Almighty allowed it to breathe twice every year: once in the winter and once in the summer. The intense cold you feel is from the severe cold of Hell, and the intense heat you feel is from the heat or steam of Hell.

It is narrated from Sayyiduna Abdullah bin Amr, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: The distance between the earth and the sky is five hundred years’ journey. Even so, if a stone the size of a large bowl or a skull were dropped from the sky towards the earth, it would reach the earth before nightfall. But if it were dropped from one end of a chain downwards, it would keep descending for forty years before reaching its origin or bottom.

It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, he says: One day we were sitting in the company of the Messenger of Allah, peace and blessings be upon him, when we heard a loud thud of something falling. The Messenger of Allah, peace and blessings be upon him, asked: Do you know what sound this is? We said: Allah and His Messenger know best. He, peace and blessings be upon him, said: This is the sound of a stone, which was thrown into Hell seventy years ago, and it has now reached its bottom.

It is narrated from Sayyiduna Abu Sa'id Khudri, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: The name of a valley in Hell is Wail; before reaching its bottom, a disbeliever will keep falling in it for forty years. Similarly, there is a mountain ahead in Hell named Sa'ud. Whoever climbs it, climbs for seventy years, then falls down from it for the same period, and this will continue with him forever and ever.

It is narrated from Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him), the Messenger of Allah (peace and blessings be upon him) said: If an iron mace is placed on the earth and all the jinn and mankind gather to lift it, they still will not be able to lift it.

(Second chain) The Messenger of Allah, peace and blessings be upon him, said: If an iron mace is struck upon a mountain, it too would be shattered into pieces, yet it would return to its original state. And if a bucket filled with the pus and blood of the inhabitants of Hell were poured out into the world, all the people of the world would be tormented by its stench.

It is narrated from Sayyiduna Abdullah bin Juz’ Zubaidi (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: In Hell there are snakes as large as the necks of Bactrian camels; when one of those snakes bites a person, he will feel the intensity of its poison for forty years. And in Hell there are scorpions the size of saddled mules; when one of those scorpions stings a person, he will feel its pain for forty years.

It is narrated from Mujahid, he says: Sayyiduna Abdullah bin Abbas (may Allah be pleased with him) asked me: Do you know how vast Hell is? I said: No, I do not. He said: Indeed, we do not know, but (it is certainly so vast that) the distance between the earlobe and the shoulder of one inhabitant of Hell will be seventy years, and in it will flow valleys of pus and blood. I said: Rivers of pus and blood? He said: Not rivers, valleys, valleys. Then he said: Do you know how spacious Hell is? I said: No, I do not. He said: Indeed, we do not know how spacious it is. However, Sayyida Aisha Siddiqa (may Allah be pleased with her) narrated to me that she asked the Messenger of Allah (peace and blessings be upon him) about the statement of Allah, the Exalted: {وَالْاَرْضُ جَمِیْعًا قَبْضَتُہُ یَوْمَ الْقِیَامَۃِ وَالسَّمٰوَاتُ مَطْوِیَّاتٌ بِیَمِیْنِہٖ} (And on the Day of Resurrection the whole earth will be in His grip and the heavens will be rolled up in His right hand) (Surah Az-Zumar: 67). O Messenger of Allah! Where will the people be at the time of this transformation? He (peace and blessings be upon him) said: They will be on the bridge of Sirat over Hell.

It is narrated from Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him), the Messenger of Allah (peace and blessings be upon him) said: The walls surrounding Hell from all four sides are four; the thickness of each wall is equal to the distance of forty years' journey.

It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: On the Day of Resurrection, a neck will emerge from Hell; it will have two eyes with which it will see, it will have ears with which it will hear, and it will have a tongue with which it will speak. It will say: I have been appointed over three types of people: one who is unjust and rebellious, the second who claims another deity along with Allah Almighty, and the third, the maker of images.