Sahih al-Bukhari 6429
Narrated `Abdullah:
The Prophet (ﷺ) said, "The best people are those of my generation, and then those who will come after 
them (the next generation), and then those who will come after them (i.e. the next generation), and 
then after them, there will come people whose witness will precede their oaths, and whose oaths will 
precede their witness."
حَدَّثَنَا عَبْدَانُ، عَنْ أَبِي حَمْزَةَ، عَنِ الأَعْمَشِ، عَنْ إِبْرَاهِيمَ، عَنْ عَبِيدَةَ، عَنْ عَبْدِ اللَّهِ ـ رضى الله عنه ـ عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏
"‏ خَيْرُ النَّاسِ قَرْنِي، ثُمَّ الَّذِينَ يَلُونَهُمْ، ثُمَّ الَّذِينَ يَلُونَهُمْ، ثُمَّ يَجِيءُ مِنْ بَعْدِهِمْ قَوْمٌ تَسْبِقُ شَهَادَتُهُمْ أَيْمَانَهُمْ وَأَيْمَانُهُمْ شَهَادَتَهُمْ ‏"‏‏.‏