Hadith: These two are the masters of the elderly people of Paradise, from the first ones and the last ones, except the prophets and the messengers

عن أنس رضي الله عنه ، قال: قال رسول الله صلى الله عليه وسلم لأبي بكر وعمر: «هذان سَيِّدا كُهُول أهل الجنة من الأوَّلِين والآخِرين إلا النبيِّين والمرسلين».
[صحيح] - [رواه الترمذي]

Anas (may Allah be pleased with him) reported that the Messenger of Allah (may Allah's peace and blessings be upon him) said about Abu Bakr and ‘Umar: "These two are the masters of the elderly people of Paradise, from the first ones and the last ones, except the Prophets and the Messengers.”
Sahih/Authentic. - [At-Tirmidhi]

Explanation

The Messenger of Allah (may Allah's peace and blessings be upon him) says that Abu Bakr and ‘Umar (may Allah be pleased with both of them) are the masters of the 'Kuhūl' of the people of Paradise (i.e. everyone admitted to Paradise except the prophets and messengers.) 'Kuhūl' (sing. 'Kahl') means those who are over thirty or thirty-four up to fifty-one years old. This age limit applies to their life in the world, for there is no old age in Paradise. The age of the people there is thirty-three.