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
hakim:4506 – Abū Bakr al-Shāfiʿī > Muḥammad b. Maslamah > Yazīd b. Hārūn > Sharīk > ʿAmmār al-Duhnī > Sālim b. Abū al-Jaʿd > Ḥudhayfah

[Machine] "Al-Kufa is the dome of Islam and the land of trials." Al-Dhahabi did not speak further about it in the summary.  

الحاكم:٤٥٠٦ – أَنْبَأَنَا أَبُو بَكْرٍ الشَّافِعِيُّ ثنا مُحَمَّدُ بْنُ مَسْلَمَةَ ثنا يَزِيدُ بْنُ هَارُونَ أَنْبَأَ شَرِيكٌ عَنْ عَمَّارٍ الدُّهْنِيِّ عَنْ سَالِمِ بْنِ أَبِي الْجَعْدِ عَنْ حُذَيْفَةَ قَالَ

«الْكُوفَةُ قُبَّةُ الْإِسْلَامِ وَأَرْضُ الْبَلَاءِ» سكت عنه الذهبي في التلخيص