Sahih al-Bukhari 7068
Narrated Az-Zubair bin `Adi:
We went to Anas bin Malik and complained about the wrong we were suffering at the hand of Al- 
Hajjaj. Anas bin Malik said, "Be patient till you meet your Lord, for no time will come upon you but 
the time following it will be worse than it. I heard that from the Prophet."
حَدَّثَنَا مُحَمَّدُ بْنُ يُوسُفَ، حَدَّثَنَا سُفْيَانُ، عَنِ الزُّبَيْرِ بْنِ عَدِيٍّ، قَالَ أَتَيْنَا أَنَسَ بْنَ مَالِكٍ فَشَكَوْنَا إِلَيْهِ مَا نَلْقَى مِنَ الْحَجَّاجِ فَقَالَ ‏
"‏ اصْبِرُوا، فَإِنَّهُ لاَ يَأْتِي عَلَيْكُمْ زَمَانٌ إِلاَّ الَّذِي بَعْدَهُ شَرٌّ مِنْهُ، حَتَّى تَلْقَوْا رَبَّكُمْ ‏"‏‏.‏ سَمِعْتُهُ مِنْ نَبِيِّكُمْ صلى الله عليه وسلم‏.‏