Quraish fear spread of Islam - Try in vain to blackmail Prophet (ﷺ)
One day the Quraish tried to induce the Prophet (ﷺ) to discontinue his teachings of the new religion, which had sown discord among their people. 'Utba Ibn Rabi'a, was delegated to see the Prophet (ﷺ) and speak to him.

'Utba said:
"O son of my brother, you are distinguished by your qualities; yet you have sown discord among our people and cast dissension in our families; you denounced our gods and goddesses and you charge our ancestors with impiety. Now we are come to make a proposition to you, and I ask you to think well before you reject it."

"I am listening to you, O father of Walid," said the Prophet.

"O son of my brother, if by this affair you intend to acquire riches, honors, and dignity, we are willing to collect for you a fortune larger than is possessed by any one of us; we shall make you our chief and will do nothing without you. If you desire dominion, we shall make you our king; and if the demon which possesses you cannot be subdued, we will bring you doctors and give them riches until they cure you."

When 'Utba had finished his discourse,

the Prophet said:
"Now listen to me, O father of Walid." "I listen." He replied.

The Prophet, recited to him the first thirteen verses of Surah Fussilat, which maybe interpreted as follows:
حمٓ ١ Ḥâ-Mĩm.

تَنزِيلٌۭ مِّنَ ٱلرَّحْمَـٰنِ ٱلرَّحِيمِ ٢
˹This is˺ a revelation from the Most Compassionate, Most Merciful.

كِتَـٰبٌۭ فُصِّلَتْ ءَايَـٰتُهُۥ قُرْءَانًا عَرَبِيًّۭا لِّقَوْمٍۢ يَعْلَمُونَ ٣
˹It is˺ a Book whose verses are perfectly explained—a Quran in Arabic for people who know,

بَشِيرًۭا وَنَذِيرًۭا فَأَعْرَضَ أَكْثَرُهُمْ فَهُمْ لَا يَسْمَعُونَ ٤
delivering good news and warning. Yet most of them turn away, so they do not hear.

وَقَالُوا۟ قُلُوبُنَا فِىٓ أَكِنَّةٍۢ مِّمَّا تَدْعُونَآ إِلَيْهِ وَفِىٓ ءَاذَانِنَا وَقْرٌۭ وَمِنۢ بَيْنِنَا وَبَيْنِكَ حِجَابٌۭ فَٱعْمَلْ إِنَّنَا عَـٰمِلُونَ ٥
They say, “Our hearts are veiled against what you are calling us to, there is deafness in our ears, and there is a barrier between us and you. So do ˹whatever you want˺ and so shall we!”

قُلْ إِنَّمَآ أَنَا۠ بَشَرٌۭ مِّثْلُكُمْ يُوحَىٰٓ إِلَىَّ أَنَّمَآ إِلَـٰهُكُمْ إِلَـٰهٌۭ وَٰحِدٌۭ فَٱسْتَقِيمُوٓا۟ إِلَيْهِ وَٱسْتَغْفِرُوهُ ۗ وَوَيْلٌۭ لِّلْمُشْرِكِينَ ٦
Say, ˹O Prophet,˺ “I am only a man like you, ˹but˺ it has been revealed to me that your God is only One God. So take the Straight Way towards Him, and seek His forgiveness. And woe to the polytheists—

ٱلَّذِينَ لَا يُؤْتُونَ ٱلزَّكَوٰةَ وَهُم بِٱلْـَٔاخِرَةِ هُمْ كَـٰفِرُونَ ٧
those who do not pay alms-tax and are in denial of the Hereafter.

إِنَّ ٱلَّذِينَ ءَامَنُوا۟ وَعَمِلُوا۟ ٱلصَّـٰلِحَـٰتِ لَهُمْ أَجْرٌ غَيْرُ مَمْنُونٍۢ ٨
˹But˺ those who believe and do good will certainly have a never-ending reward.

۞ قُلْ أَئِنَّكُمْ لَتَكْفُرُونَ بِٱلَّذِى خَلَقَ ٱلْأَرْضَ فِى يَوْمَيْنِ وَتَجْعَلُونَ لَهُۥٓ أَندَادًۭا ۚ ذَٰلِكَ رَبُّ ٱلْعَـٰلَمِينَ ٩
Ask ˹them, O  Prophet˺, “How can you disbelieve in the One Who created the earth in two Days? And how can you set up equals with Him? That is the Lord of all worlds.

وَجَعَلَ فِيهَا رَوَٰسِىَ مِن فَوْقِهَا وَبَـٰرَكَ فِيهَا وَقَدَّرَ فِيهَآ أَقْوَٰتَهَا فِىٓ أَرْبَعَةِ أَيَّامٍۢ سَوَآءًۭ لِّلسَّآئِلِينَ ١٠
He placed on the earth firm mountains, standing high, showered His blessings upon it, and ordained ˹all˺ its means of sustenance—totaling four Days exactly—for all who ask.

ثُمَّ ٱسْتَوَىٰٓ إِلَى ٱلسَّمَآءِ وَهِىَ دُخَانٌۭ فَقَالَ لَهَا وَلِلْأَرْضِ ٱئْتِيَا طَوْعًا أَوْ كَرْهًۭا قَالَتَآ أَتَيْنَا طَآئِعِينَ ١١
Then He turned towards the heaven when it was ˹still like˺ smoke, saying to it and to the earth, ‘Submit, willingly or unwillingly.’ They both responded, ‘We submit willingly.’

فَقَضَىٰهُنَّ سَبْعَ سَمَـٰوَاتٍۢ فِى يَوْمَيْنِ وَأَوْحَىٰ فِى كُلِّ سَمَآءٍ أَمْرَهَا ۚ وَزَيَّنَّا ٱلسَّمَآءَ ٱلدُّنْيَا بِمَصَـٰبِيحَ وَحِفْظًۭا ۚ ذَٰلِكَ تَقْدِيرُ ٱلْعَزِيزِ ٱلْعَلِيمِ ١٢
So He formed the heaven into seven heavens in two Days, assigning to each its mandate. And We adorned the lowest heaven with ˹stars like˺ lamps ˹for beauty˺ and for protection. That is the design of the Almighty, All-Knowing.” 

فَإِنْ أَعْرَضُوا۟ فَقُلْ أَنذَرْتُكُمْ صَـٰعِقَةًۭ مِّثْلَ صَـٰعِقَةِ عَادٍۢ وَثَمُودَ ١٣
If they turn away, then say, ˹O Prophet,˺ “I warn you of a ˹mighty˺ blast, like the one that befell ’Ȃd and Thamûd.”

When the Prophet had finished his recitation, he said to 'Utba:
"This is my reply to your proposition; now take what course you find best."

Reference: From "Stories of the Prophets" by Al-Imam ibn Kathir