You are reading a tafsir for the group of verses 56:39 to 56:48
ثُلَّةٌ
مِّنَ
الْاَوَّلِیْنَ
۟ۙ
وَثُلَّةٌ
مِّنَ
الْاٰخِرِیْنَ
۟ؕ
وَاَصْحٰبُ
الشِّمَالِ ۙ۬
مَاۤ
اَصْحٰبُ
الشِّمَالِ
۟ؕ
فِیْ
سَمُوْمٍ
وَّحَمِیْمٍ
۟ۙ
وَّظِلٍّ
مِّنْ
یَّحْمُوْمٍ
۟ۙ
لَّا
بَارِدٍ
وَّلَا
كَرِیْمٍ
۟
اِنَّهُمْ
كَانُوْا
قَبْلَ
ذٰلِكَ
مُتْرَفِیْنَ
۟ۚۖ
وَكَانُوْا
یُصِرُّوْنَ
عَلَی
الْحِنْثِ
الْعَظِیْمِ
۟ۚ
وَكَانُوْا
یَقُوْلُوْنَ ۙ۬
اَىِٕذَا
مِتْنَا
وَكُنَّا
تُرَابًا
وَّعِظَامًا
ءَاِنَّا
لَمَبْعُوْثُوْنَ
۟ۙ
اَوَاٰبَآؤُنَا
الْاَوَّلُوْنَ
۟
3

ثُلَّةٌ مِّنَ الْأَوَّلِينَ وَثُلَّةٌ مِّنَ الْآخِرِ‌ينَ (many from the earlier generations, and many from the later ones....56:39-40) In connection with sabiqun, (the Foremost) two views of the commentators were quoted earlier as to the identity of 'the earlier' and the 'later' generations. If 'the earlier' refers to the generations from 'Adam (علیہ السلام) to the period just prior to the advent of the Holy Prophet ﷺ and 'the later generations' refers to the 'Ummah of the Holy Prophet ﷺ till the Day of Judgment, as some of the commentators have opined, then the verses would mean: 'the People of the Right' will constitute a 'large party' of believers and the righteous from all the previous communities combined together, while there will be a 'large party' from the Ummah of the Holy Prophet ﷺ alone. In this case, it is a great honor for the Ummah of the Holy Prophet ﷺ that, despite the short period they lived in this world, they could be compared to all the previous communities who were headed by hundreds of thousands of Prophets (علیہم السلام) . Besides, the words 'many from the later generations' has the scope of being larger in number than the 'many from the earlier generations'.

If we go by the second view of the commentators, who say that both 'earlier' and 'later' generations are from the ummah of the Holy Prophet ﷺ ، then even the later generations of this ummah will not be totally deprived of 'the Foremost', though their number in later generations will be less. As for the People of the Right, their number will be large in both 'earlier' and 'later' generations. This fact is proved by a Hadith reported by Bukhari and Muslim from Sayyidna Mu` awiyah ؓ in which the Holy Prophet ﷺ has said, 'A group of my 'Ummah will always remain on the truth and dominant, unharmed by those who fail to support them and those who defy them, until the Last Hour begins.'.