Hadithcore
Sahih Muslim, 2538 e
sahih

Jabir b. 'Abdullah reported that Allah's Messenger (ﷺ) said:

None amongst the created beings (from my Companions) would survive after one hundred years. Salim said: We made a mention of it to him (Jabir), whereupon he said: It means those who had been living on that day.

حَدَّثَنِي إِسْحَاقُ بْنُ مَنْصُورٍ، أَخْبَرَنَا أَبُو الْوَلِيدِ، أَخْبَرَنَا أَبُو عَوَانَةَ، عَنْ حُصَيْنٍ، عَنْ سَالِمٍ، عَنْ جَابِرِ بْنِ عَبْدِ اللَّهِ، قَالَ قَالَ نَبِيُّ اللَّهِ صلى الله عليه وسلم ‏

‏ مَا مِنْ نَفْسٍ مَنْفُوسَةٍ تَبْلُغُ مِائَةَ سَنَةٍ ‏

‏ ‏.‏ فَقَالَ سَالِمٌ تَذَاكَرْنَا ذَلِكَ عِنْدَهُ إِنَّمَا هِيَ كُلُّ نَفْسٍ مَخْلُوقَةٍ يَوْمَئِذٍ ‏.‏

References2 variants
In-Book Reference
Book 44, Hadith 315
USC-MSA web (English) reference
Book 31, Hadith 6166 (deprecated numbering scheme)