Sahih Muslim 2953
Sahih Muslim · Book 54: The Book of Tribulations and Portents of the Last Hour · The Approach Of The Hour
Anas reported:
حَدَّثَنَا هَارُونُ بْنُ عَبْدِ اللَّهِ ، حَدَّثَنَا عَفَّانُ بْنُ مُسْلِمٍ ، حَدَّثَنَا هَمَّامٌ ، حَدَّثَنَا قَتَادَةُ ، عَنْ أَنَسٍ ، قَالَ مَرَّ غُلاَمٌ لِلْمُغِيرَةِ بْنِ شُعْبَةَ وَكَانَ مِنْ أَقْرَانِي فَقَالَ النَّبِيُّ صلى الله عليه وسلم " إِنْ يُؤَخَّرْ هَذَا فَلَنْ يُدْرِكَهُ الْهَرَمُ حَتَّى تَقُومَ السَّاعَةُ " .
A young boy of Mughira b. Shu'ba happened to pass by (the Holy Prophet) and he was of my age. Thereupon Allah's Apostle (ﷺ) said: If he lives long he would not grow very old till the Last Hour would come (to the old people of this generation).