The Prophet ﷺ said regarding the statement of Allah , "And thus We have made you a middle nation" [Baqarah 2:143], "Meaning, just."
حدثنا أبو معاوية حدثنا الأعمش عن أبي صالح
عن النبي ﷺ في قوله عز وجل {وكذلك جعلناكم أمة وسطا} قال عدلا
Its isnad is sahih. The hadith is found in Bukhari 6/371, no. 3339, Fath, in the chapter on the Prophets, and in Tirmidhi in the tafsir of Surah Baqarah, 5/307, no. 2961, where he said, hasan sahih.