The Prophet ﷺ said, "No servant truly believes until he loves for his Muslim brother the same good that he loves for himself."
حدثنا عفان حدثنا همام حدثنا قتادة
عن النبي ﷺ قال لا يؤمن عبد حتى يحب لأخيه المسلم ما يحبه لنفسه من الخير
Its isnad is sahih, mentioned previously at 13080.