Hadithcore
Mishkat al-Masabih, 3716

Abu Huraira reported God’s Messenger as saying, “Seek refuge in God from the beginning of the year seventy and the governorship exercised by boys.”* Ahmad. *This tradition is direction against some of the Umayyads.

وَعَنْ أَبِي هُرَيْرَةَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «تَعَوَّذُوا بِاللَّهِ مِنْ رَأْسِ السَّبْعِينَ وَإِمَارَةِ الصِّبْيَانِ» . رَوَى الْأَحَادِيثَ السِّتَّةَ أَحْمَدُ وَرَوَى الْبَيْهَقِيُّ حَدِيثَ مُعَاوِيَةَ فِي «دَلَائِلِ النُّبُوَّة»

References1 variant
In-Book Reference
Book 18, Hadith 55