(30) باب لِيَنْظُرْ إِلَى مَنْ هُوَ أَسْفَلَ مِنْهُ وَلاَ يَنْظُرْ إِلَى مَنْ هُوَ فَوْقَهُ
Narrated Abu Huraira:
Allah's Messenger (ﷺ) said, "If anyone of you looked at a person who was made superior to him in property and (in good) appearance, then he should also look at the one who is inferior to him.
Reference: Sahih al-Bukhari 6490
In-book reference: Book 81, Hadith 79
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 76, Hadith 497