Sahih al-Bukhari, Book 81, Hadith 134 (In-Book) ⓘ
Narrated Abu Huraira: The Prophet said, " It will be said to the people of Paradise, 'O people of Paradise! Eternity (for you) and no death,' and to the people of the Fire, 'O people of the Fire, eternity (for you) and no death!"
حَدَّثَنَا أَبُو الْيَمَانِ، أَخْبَرَنَا شُعَيْبٌ، حَدَّثَنَا أَبُو الزِّنَادِ، عَنِ الأَعْرَجِ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ النَّبِيُّ صلى الله عليه وسلم " يُقَالُ لأَهْلِ الْجَنَّةِ خُلُودٌ لاَ مَوْتَ. وَلأَهْلِ النَّارِ يَا أَهْلَ النَّارِ خُلُودٌ لاَ مَوْتَ " .
also referenced under: Hadith 6545 (DarusSalam) & Volume 8, Book 76, Hadith 553 (USC-MSA)