51:25
اِذْ دَخَلُوا عَلَیْهِ فَقَالُوا سَلَامًاؕ قَالَ سَلَامٌۚ قَوْمٌ مُنْكَرُونَ
Ith dakhaloo AAalayhi faqaloo salaman qala salamun qawmun munkaroona
Translations
When they entered upon him and said, "[We greet you with] peace." He answered, "[And upon you] peace, [you are] a people unknown
Saheeh International
When they came in unto him and said: Peace! he answered, Peace! (and thought): Folk unknown (to me)
Marmaduke Pickthall