كتاب الصلاة
2  
The Book of Prayer
Bulugh al-Maram 400
Likewise, al-Bukhari reported from Abu Sa'id al-Khudri:
"He (ﷺ) said (the word) Daraja (degree)."
وَكَذَا لِلْبُخَارِيِّ: عَنْ أَبِي سَعِيدٍ, وَقَالَ: "دَرَجَةً " 1‏ .‏
Reference : Bulugh al-Maram 400
In-book reference : Book 2, Hadith 400
English translation : Book 2, Hadith 395
Hadith Text
Reference