سورة الحج

Imam Ali (peace be upon him): O servants of Allah! Indeed, in [the days] after being raised [from the grave], you will face things that are more severe than [the period of] the grave; and it is a day on which the young one grows old, and the elderly becomes intoxicated and unconscious, and the fetus falls [from its mother's womb]; and تَذْهَلُ کُلُّ مُرْضِعَةٍ عَمَّا أَرْضَعَتْ [every woman giving suck shall quit in confusion what she suckled], a day that is grim and utterly dreadful, and a day whose evil and punishment is widespread. (al-Insan/7).

Ali ibn Ibrahim (may Allah have mercy on him): يَوْمَ تَرَوْنَها تَذْهَلُ کُلُّ مُرْضِعَةٍ عَمَّا أَرْضَعَتْ [On the day you see it, every nursing mother will forget what she was nursing] — meaning [on that day, every nursing mother] will be bewildered and confused and will be heedless [of the infant she is nursing]; وَ تَضَعُ کُلُّ ذاتِ حَمْلٍ حَمْلَها [and every pregnant woman shall lay down her burden] — every woman who is pregnant [at the time of the earthquake of the Resurrection] and dies, on the Day of Resurrection she will lay her fetus down on the ground [out of fear] (miscarry); وَ تَرَی النَّاسَ سُکاری [and you shall see the people as if intoxicated] — [meaning] the people, from the intensity of fear and terror, are bewildered and confused.

The Prophet (peace be upon him and his family): When the Day of Resurrection arrives and Allah gathers all creatures for reckoning... He commands a fire whose name is "Falaq" and which has the most severe torment and punishment of Hell, [to appear]; that fire also emerges from its place as a black and dark fire together with chains and shackles. Allah the Mighty and Majestic commands it to blow toward the creatures; the fire does so, and from the intensity and severity of that blowing, the sky is torn apart, the stars disappear, the seas solidify, the mountains are annihilated, eyes become dim, pregnant women miscarry, and children, from fear of it, on the Day of Resurrection turn white-haired [and old].