It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "The Hour will not be established until many mines (mineral deposits) appear, in which none but the lowest and most worthless of people will dwell."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Abd al-Rahman bin Abi Aishah (may Allah have mercy on him) except Hafs (may Allah have mercy on him), and Yahya (may Allah have mercy on him) is alone in narrating it."
In the printed edition of Dar al-Haramayn it is recorded like this (Hafs al-Muzani), but the correct name is probably (Abu Hafs al-Mazini).
Hadith Referenceالمعجم الأوسط / باب الألف / 1509
Hadith Gradingمحدثین:فيه من لا يُعرف
Hadith Takhrij«قال الهيثمي: فيه من لم أعرفه «مجمع الزوائد ومنبع الفوائد، ج 7، ص 331»» «أخرجه أبو يعلى فى «مسنده» برقم: 6421، وعبد الرزاق فى «مصنفه» برقم: 19761»