The Prophet ﷺ said, "No servant truly believes until he loves for his brother the same good that he loves for himself."
حدثنا بهز حدثنا همام عن قتادة
أن النبي ﷺ قال لا يؤمن عبد حتى يحب لأخيه ما يحب لنفسه من الخير
Its isnad is sahih, mentioned previously in 13898.