Sahih al-Bukhari, Volume 8, Book 76, Hadith 437 (USC-MSA) ⓘ
Narrated `Abdullah: The Prophet 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 " .
also referenced under: Book 81, Hadith 18 (In-Book) & Hadith 6429 (DarusSalam)