Hadith 558

Sahih Muslim

Book 15: The Book of Pilgrimage

Chapter 88

Al-Madinah eliminates its Dross and it is also called Tabah, and Taibah

باب الْمَدِينَةِ تَنْفِي شِرَارَهَا ‏‏

Sahih Muslim 1382b
وَحَدَّثَنَا عَمْرٌو النَّاقِدُ، وَابْنُ أَبِي عُمَرَ، قَالاَ حَدَّثَنَا سُفْيَانُ، ح وَحَدَّثَنَا ابْنُ الْمُثَنَّى، حَدَّثَنَا عَبْدُ الْوَهَّابِ، جَمِيعًا عَنْ يَحْيَى بْنِ سَعِيدٍ، بِهَذَا الإِسْنَادِ وَقَالاَ ‏ ‏ ‏.‏ لَمْ يَذْكُرَا الْحَدِيدَ .
"‏ كَمَا يَنْفِي الْكِيرُ الْخَبَثَ "
This hadith has been narrated by Yabya b. Sa'id with the same chain of transmitters (and the words are):

" Just as a furance removes impurity," but no mention is made of iron.