سورة النازعات

Ali ibn Ibrahim (may Allah have mercy on him): یَوْمَ تَرْجُفُ الرَّاجِفَةُ * تَتْبَعُهَا الرَّادِفَةُ [The day on which the quaking one shall quake, what must happen afterwards shall follow it]; it is the day on which the earth splits open and sinks down along with its inhabitants, and al-radifah means the cry and the shout.

Imam Sadiq (peace be upon him): Sulayman ibn Khalid said: Imam Sadiq (peace be upon him) said concerning these verses: یَوْمَ تَرْجُفُ الرَّاجِفَةُ * تَتْبَعُهَا الرَّادِفَةُ [The day on which the quaking one shall quake, what must happen afterwards shall follow it]: "Al-Rajifah — the one who rises with swift movement and agitation — is Husayn ibn Ali (peace be upon him), and the other who follows after him is Ali ibn Abi Talib (peace be upon him). The first one who will come out of the grave at the raj'ah (return) and shake the dust from his head and face is Husayn ibn Ali (peace be upon him), who will be raised together with seventy-five thousand people. As Allah says: 'Indeed, We shall certainly help Our messengers and those who have believed, in the life of this world and on the day when the witnesses stand up * [the same] day on which the wrongdoers' apology will not benefit them, and upon them shall be the curse, and for them shall be the evil abode.' (Ghafir/51)."