Abu Hurairah (May Allah be pleased with him) reported:
Messenger of Allah (ﷺ) said, "On the Day of Resurrection, Allah, the Exalted, will say: 'Where are those who have mutual love for the sake of My Glory? Today I shall shelter them in My Shade when there will be no shade except Mine".[Muslim].
Arabic/English book reference: Book 1, Hadith 377