Unmistakably from Allah

69:38-47 (Pickthall tr.)

But nay! I swear by all that ye see
And all that ye see not
That it is indeed the speech of an illustrious messenger.
It is not poet's speech - little is it that ye believe!
Nor diviner's speech - little is it that ye remember!
It is a revelation from the Lord of the Worlds.
And if he had invented false sayings concerning Us,
We assuredly had taken him by the right hand
And then severed his life-artery,
And not one of you could have held Us off from him.

‏فَلَآ أُقْسِمُ بِمَا تُبْصِرُونَ
‏وَمَا لَا تُبْصِرُونَ
إِنَّهُۥ لَقَوْلُ رَسُولٍۢ كَرِيمٍۢ
وَمَا هُوَ بِقَوْلِ شَاعِرٍۢ ۚ قَلِيلًۭا مَّا تُؤْمِنُونَ
‏وَلَا بِقَوْلِ كَاهِنٍۢ ۚ قَلِيلًۭا مَّا تَذَكَّرُونَ
تَنزِيلٌۭ مِّن رَّبِّ ٱلْعَلَمِينَ
وَلَوْ تَقَوَّلَ عَلَيْنَا بَعْضَ ٱلْأَقَاوِيلِ
‏لَأَخَذْنَا مِنْهُ بِٱلْيَمِينِ
‏ثُمَّ لَقَطَعْنَا مِنْهُ ٱلْوَتِينَ
‏فَمَا مِنكُم مِّنْ أَحَدٍ عَنْهُ حَجِزِينَ
‏

IV. What?

69:1-3 (Pickthall tr.)

The Reality!
What is the Reality ?
Ah, what will convey unto thee what the reality is!

ٱلْحَآقَّةُ
‏مَا ٱلْحَآقَّةُ
وَمَآ أَدْرَىٰكَ مَا ٱلْحَآقَّةُ

According to Tafsir of Ibn Kathir, "Al-Haaqqah" is one of the names of the Day of Judgement.

69:13-17 (Pickthall tr.)

And when the trumpet shall sound one blast
And the earth with the mountains shall be lifted up and crushed with one crash,
Then, on that day will the Event befall.
And the heaven will split asunder, for that day it will be frail.
And the angels will be on the sides thereof, and eight will uphold the Throne of thy Lord that day, above them.

فَإِذَا نُفِخَ فِى ٱلصُّورِ نَفْخَةٌۭ وَحِدَةٌۭ
‏وَحُمِلَتِ ٱلْأَرْضُ وَٱلْجِبَالُ فَدُكَّتَا دَكَّةًۭ وَحِدَةًۭ
فَيَوْمَئِذٍۢ وَقَعَتِ ٱلْوَاقِعَةُ
وَٱنشَقَّتِ ٱلسَّمَآءُ فَهِىَ يَوْمَئِذٍۢ وَاهِيَةٌۭ
‏وَٱلْمَلَكُ عَلَىٰٓ أَرْجَآئِهَا ۚ وَيَحْمِلُ عَرْشَ رَبِّكَ فَوْقَهُمْ يَوْمَئِذٍۢ ثَمَنِيَةٌۭ ‎

69:32 (Pickthall tr.)

And then insert him in a chain whereof the length is seventy cubits.

ثُمَّ فِى سِلْسِلَةٍۢ ذَرْعُهَا سَبْعُونَ ذِرَاعًۭا فَٱسْلُكُوهُ

76:5-6 (Palmer tr.)

Verily, the righteous shall drink of a cup tempered with Kâfûr, a spring from which God's servants shall drink and make it gush out as they please!

‏إِنَّ ٱلْأَبْرَارَ يَشْرَبُونَ مِن كَأْسٍۢ كَانَ مِزَاجُهَا كَافُورًا
عَيْنًۭا يَشْرَبُ بِهَا عِبَادُ ٱللَّهِ يُفَجِّرُونَهَا تَفْجِيرًۭا

From Tafsir ibn Kathir:
"The properties of the Kafur (camphor) are well known; cooling, having a nice fragrance and in addition to this its taste will be delicious in Paradise."
"... this (drink) that will be mixed for these righteous people will be taken from Kafur, which is a spring that Allah's close servants will drink directly from, without it being mixed with anything, and they will drink to their fill from it."

76:17-18 (Pickthall tr.)

There are they watered with a cup whereof the mixture is of Zanjabil,
(The water of) a spring therein, named Salsabil.

‏وَيُسْقَوْنَ فِيهَا كَأْسًۭا كَانَ مِزَاجُهَا زَنجَبِيلًا
‏عَيْنًۭا فِيهَا تُسَمَّىٰ سَلْسَبِيلًۭا


86: 1-3 (Yusuf Ali tr.)

By the Sky
And the Night-Visitant
(Therein);—

And what will explain to thee
What the Night-Visitant is?—

(It is) the Star
Of piercing brightness;—

وَٱلسَّمَآءِ وَٱلطَّارِقِ
وَمَآ أَدْرَىٰكَ مَا ٱلطَّارِقُ
ٱلنَّجْمُ ٱلثَّاقِبُ

36:1-4 (Rodwell tr.)

YA. SIN. By the wise Koran!
Surely of the Sent Ones, Thou,
Upon a right path!

‏يسٓ
‏وَٱلْقُرْءَانِ ٱلْحَكِيمِ
‏إِنَّكَ لَمِنَ ٱلْمُرْسَلِينَ
‏عَلَىٰ صِرَطٍۢ مُّسْتَقِيمٍۢ