“Say, ˹O Prophet,˺ “On the Day of Decision it will not benefit the disbelievers to believe then, nor will they be delayed ˹from punishment˺.” (Quran, 32:29)

“We brought the Children of Israel across the sea. Then Pharaoh and his soldiers pursued them unjustly and oppressively. But as Pharaoh was drowning, he cried out, “I believe that there is no god except that in whom the Children of Israel believe, and I am ˹now˺ one of those who submit.” (Quran, 10:90)

“nor will they be delayed ˹from punishment˺.” (Quran, 32:29)

Imam Sadiq (as) said, “The day of victory’‘ is the day on which the Qaem (as) will achieve victory in the world. On that day, accepting the faith will not benefit anyone who does not already believe and has not become certain after the victory.
However, those who already believed in him and are certain in their beliefs will profit from their faith. Their status will be elevated with Allah. On the Day of Judgment, Allah will decorate His Paradise for them and He will keep the fires of Hell (away) from them.
This is the reward of those who believe in the Wilayat of the Commander of the Believers and his purified progeny.
Astar al-Abadi, Ali Al-Ḥusayni, Taweel al-Ayat al-Zahirah fī fadhail al-Itrah al-Ṭahirah, A collection of hadiths regarding the tafseer (explanations) for various ayats in Quran. Wilayat Mission.

“If We willed, We could send down upon them a ˹compelling˺ sign from the heavens, leaving their necks bent in ˹utter˺ submission to it.” (Quran, 26:4)

These two calls must occur before the appearance of al-Qa’im. One will be from the Heaven calling out the name of al-Qa’im and the name of his father. It will be the call of Gabriel. The other will be from the earth and it will be the call of Iblis calling out the name of someone claiming that he has been killed unjustly just to create sedition among people. Obey the first call and beware of being deceived by the second one!”
(Abu Abdullah Muhammad bin Ibraheem bin Ja’far al-Katib. Kitab al-Ghayba: The Book of Occultation)