Sahih al-Bukhari 3266
Sahih al-Bukhari · Book 59: Beginning of Creation · The description of the (Hell) Fire and the fact that it has already been created
Narrated Yali:
حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ ، حَدَّثَنَا سُفْيَانُ ، عَنْ عَمْرٍو ، سَمِعَ عَطَاءً ، يُخْبِرُ عَنْ صَفْوَانَ بْنِ يَعْلَى ، عَنْ أَبِيهِ ، أَنَّهُ سَمِعَ النَّبِيَّ صلى الله عليه وسلم يَقْرَأُ عَلَى الْمِنْبَرِ {وَنَادَوْا يَا مَالِكُ } .
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.)