Riyad as-Salihin

Mu'adh (bin Jabal) (May Allah be pleased with him) reported: Messenger of Allah (ﷺ) said, "Allah, the Exalted, has said: 'For those who love one another for the sake of My Glory, there will be seats of light (on the Day of Resurrection), and they will be envied by the Prophets and martyrs".

[At- Tirmidhi, who classified it as Hadith Hasan Sahih].