The disbelievers of Makkah Mukarramah would torture Hazrat ‘Ammaar, Hazrat Suhaib, Hazrat Abu Faa’idah and Hazrat ‘Aamir bin Fuhairah (radhiyallahu ‘anhum) to such an extent that they would lose their senses and fall unconscious. This state of senselessness was so severe that they did not even realize what they were uttering.

In regard to such people, the following verse was revealed:

ثُمَّ اِنَّ رَبَّکَ لِلَّذِیۡنَ ہَاجَرُوۡا مِنۡۢ بَعۡدِ مَا فُتِنُوۡا ثُمَّ جٰہَدُوۡا وَ صَبَرُوۡۤا ۙ اِنَّ رَبَّکَ مِنۡۢ بَعۡدِہَا لَغَفُوۡرٌ رَّحِیۡمٌ ﴿۱۱۰﴾٪

Then, your Lord – for those who migrated after being persecuted and then fought in the way of Allah and stood patient – surely your Lord, after all, is Most-Forgiving and Merciful. (Surah Nahl v. 110)

This verse was revealed in regard to the abovementioned people.

(Extracted from Seeratul Mustafa 1/228-229)