On the authority of Abu Hurayrah (may Allah be pleased with him), who said that the Messenger of Allah ﷺ said: Allah will say on the Day of Resurrection:

Where are those who love one another through My glory? Today I shall give them shade in My shade, it being a day when there is no shade but My shade.

It was related by al-Bukhari (also by Malik).

عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ :
"إِنَّ اللَّهَ تَبَارَكَ وَتَعَالَى يَقُولُ يَوْمَ الْقِيَامَةِ: أَيْنَ الْمُتَحَابُّونَ بجَلَالِي؟ الْيَوْمَ أُظِلُّهُمْ فِي ظِلِّي يَوْمَ لَا ظِلَّ إِلَّا ظِلِّي"
رواه البخاري (وكذلك مالك)