صفات الجنة والنار
Abu Sa‘īd al-Khudri and Abu Hurayrah (may Allah be pleased with both of them) reported that the Prophet (may Allah's peace and blessings be upon him) said: "When the inhabitants of Paradise enter Paradise, a caller will call out: Indeed, you will live forever and never die, you will be healthy and never fall ill, you will be young and never grow old, and you will be happy and never be sad."
عن أبي سعيد الخدري وأبي هريرة -رضي الله عنهما- مرفوعاً: «إذا دخلَ أهلُ الجنةِ الجنةَ يُنَادِي مُنادٍ: إن لكم أن تَحْيوا، فلا تَموتُوا أبداً، وإن لكم أن تَصِحُّوا، فلا تَسقَمُوا أبداً، وإن لكم أن تَشِبُّوا فلا تَهرَمُوا أبداً، وإن لكم أن تَنعَمُوا، فلا تَبْأسُوا أبداً».
شرح الحديث :
Some of the aspects of bliss in Paradise is what the Prophet (may Allah's peace and blessings be upon him) informed us in this Hadīth; that a caller will call out to the inhabitants of Paradise, telling them that they will be in a state of eternal bliss, never fearing death or illness or old age (which causes weakness) or interruption of the state of happiness they are in. This Hadīth and others encourage people to do the righteous deeds that make them attain this eternal abode of bliss.