The Prophet ﷺ said, "None of you truly believes until he loves for his brother what he loves for himself."
حدثنا عبيد الله بن معاذ حدثنا أبي حدثنا شعبة عن قتادة
قال النبي ﷺ لا يؤمن أحدكم حتى يحب لأخيه ما يحب لنفسه
Its isnad is sahih. Ubaydullah bin Muaz bin Muaz bin Nasr Anbari is trustworthy and firmly reliable, as is his father, and the hadith has already appeared at 13808.