Ibn Jarir recorded that Sa`id bin Jubayr said, "An Ansari man came to the Messenger of Allah ﷺ while feeling sad. The Prophet ﷺ said to him, `Why do I see you sad' He said, `O Allah's Prophet! I was contemplating about something.' The Prophet said, `What is it' The Ansari said, `We come to you day and night, looking at your face and sitting by you. Tomorrow, you will be raised with the Prophets, and we will not be able to see you.' The Prophet ﷺ did not say anything, until Jibril came down to him with this Ayah
﴿وَمَن يُطِعِ اللَّهَ وَالرَّسُولَ فَأُوْلَـئِكَ مَعَ الَّذِينَ أَنْعَمَ اللَّهُ عَلَيْهِم مِّنَ النَّبِيِّينَ وَالصِّدِّيقِينَ وَالشُّهَدَآءِ وَالصَّـلِحِينَ وَحَسُنَ أُولَـئِكَ رَفِيقاً ﴾
(And whoever obeys Allah and the Messenger, then they will be in the company of those on whom Allah has bestowed His grace, of the Prophets, the Siddiqin, the martyrs, and the righteous. And how excellent these companions are!) Consequently, whosoever implements what Allah and His Messenger have commanded him and avoids what Allah and His Messenger have prohibited, then Allah will grant him a dwelling in the Residence of Honor. There, Allah will place him in the company of the Prophets, and those who are lesser in grade, the true believers, then the martyrs and then the righteous, who are righteous inwardly and outwardly.
The companions were never happier with any other Hadith than this one, since they loved the Prophet (ﷺ) with all their hearts.
Anas commented, "Muslims were never happier than with this Hadith.'' In another narration, Anas said, "I love the Messenger of Allah, Abu Bakr and `Umar, and I hope that Allah will resurrect me with them, even though I did not perform actions similar to theirs.''