Not graded
Mishkat al-Masabih 5436
Narrator:Anas ibn Mālik
وَعَن أنسٍ قَالَ: فَتْحُ القسطنطينة مَعَ قِيَامِ السَّاعَةِ. رَوَاهُ التِّرْمِذِيُّ. وَقَالَ: هَذَا حَدِيثٌ غَرِيبٌ
Anas said the conquest of Constantinople would be associated with the coming of the last hour. Tirmidhi transmitted it, saying this is a gharib tradition.
Cited in Mishkat al-Masabih (No. 5436).