(10) باب صِفَةِ النَّارِ وَأَنَّهَا مَخْلُوقَةٌ
Narrated Yali:
That he heard the Prophet (ﷺ) on the pulpit reciting:-- "They will cry: "O Malik!' (43.77) (Malik is the gate-keeper (angel) of the (Hell) Fire.)
Reference: Sahih al-Bukhari 3266
In-book reference: Book 59, Hadith 76
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 4, Book 54, Hadith 488