Language:
كتاب الرقاق
81  
To make the Heart Tender (Ar-Riqaq)
(7)
Chapter: The warning regarding worldly pleasures, amusements and competing against each other
(7)
باب مَا يُحْذَرُ مِنْ زَهْرَةِ الدُّنْيَا وَالتَّنَافُسِ فِيهَا
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 ‏"‏‏.‏
Reference : Sahih al-Bukhari 6429
In-book reference : Book 81, Hadith 18
USC-MSA web (English) reference : Vol. 8, Book 76, Hadith 437
  (deprecated numbering scheme)