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.
ahmad:8023ʿAbd al-Raḥman > Sufyān > ʿĀṣim > ʿUbayd a freed slave of Abū Ruhm > Abū Hurayrah

[Machine] I heard the Messenger of Allah ﷺ say, "Many a right hand does not ascend to Allah with this spot, yet I have seen blacksmiths in it afterwards."  

أحمد:٨٠٢٣حَدَّثَنَا عَبْدُ الرَّحْمَنِ عَنْ سُفْيَانَ عَنْ عَاصِمٍ عَنْ عُبَيْدٍ مَوْلَى أَبِي رُهْمٍ عَنْ أَبِي هُرَيْرَةَ قَالَ

سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ رُبَّ يَمِينٍ لَا تَصْعَدُ إِلَى اللهِ بِهَذِهِ الْبُقْعَةِ فَرَأَيْتُ فِيهَا النَّخَّاسِينَ بَعْدُ