Sahih Muslim
Sahih Muslim 1385
Al-Madinah eliminates its Dross and it is also called Tabah, and Taibah
Arabic hadith text
وَحَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، وَهَنَّادُ بْنُ السَّرِيِّ، وَأَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ قَالُوا حَدَّثَنَا أَبُو الأَحْوَصِ، عَنْ سِمَاكٍ، عَنْ جَابِرِ بْنِ سَمُرَةَ، قَالَ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ "إِنَّ اللَّهَ تَعَالَى سَمَّى الْمَدِينَةَ طَابَةَ "
Translation
Jabir b. Samura (Allah be pleased with him) reported that he heard Allah's Messenger (ﷺ) say
Allah named Medina as Tabba.