Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
tirmidhi:2239 – Maḥmūd b. Ghaylān > Abū Dāwud > Shuʿbah > Yaḥyá b. Saʿīd > Anas b. Mālik > Fatḥ al-Qusṭunṭīniyyah Maʿ Qiyām al-Sāʿah

"Constantinople will be conquered with the coming of the Hour."  

الترمذي:٢٢٣٩ – حَدَّثَنَا مَحْمُودُ بْنُ غَيْلاَنَ حَدَّثَنَا أَبُو دَاوُدَ عَنْ شُعْبَةَ عَنْ يَحْيَى بْنِ سَعِيدٍ عَنْ أَنَسِ بْنِ مَالِكٍ قَالَ

فَتْحُ الْقُسْطُنْطِينِيَّةِ مَعَ قِيَامِ السَّاعَةِ  

قَالَ هَذَا حَدِيثٌ غَرِيبٌ وَالْقُسْطَنْطِينِيَّةُ هِيَ مَدِينَةُ الرُّومِ تُفْتَحُ عِنْدَ خُرُوجِ الدَّجَّالِ وَالْقُسْطَنْطِينِيَّةُ قَدْ فُتِحَتْ فِي زَمَانِ بَعْضِ أَصْحَابِ النَّبِيِّ ﷺ