Al-Adab Al-Mufrad, Hadith 426 ⓘ
The Prophet, may Allah bless him and grant him peace, said, "Allah Almighty revealed to me that you should be humble and that you should not wrong one another."
وَقَالَ النَّبِيُّ صلى الله عليه وسلم: إِنَّ اللَّهَ عَزَّ وَجَلَّ أَوْحَى إِلَيَّ أَنْ تَوَاضَعُوا، وَلاَ يَبْغِ بَعْضُكُمْ عَلَى بَعْضٍ.
also referenced under: Book 24, Hadith 8 (In-Book) & Book 24, Hadith 426 (English)