Hadith #4283The Promised Deliverer (Kitab Al-Mahdi) · Narrated by Abdullah bin Ja'far al-Raqqi عبد الله بن جعفر الرقي, Ahmed bin Ibrahim bin Kathir أحمد بن إبراهيم بن كثير, Ali bin Nafayl علي بن نفيل, Sa'id ibn al-Musayyib سعيد بن المسيب بن حزن أبو محمد القرشي, Umm Salamah, Ziyad bin Byan زياد بن بيان · Sahih
The Prophet (ﷺ) said: If only one day of this time (world) remained, Allah would raise up a man from my family who would fill this earth with justice as it has been filled with oppression.