Sunan Abi Dawud, Hadith 4640

‘Imran b. Husain reported the Messenger of Allah as saying : the best of my people is the generation in which I have been sent, then their immediate followers, then their immediate followers. Allah knows best whether he mentioned the third or not. After them will be people who will give testimony without being asked, who will make vows which they do not fulfill, who will be treacherous and not to be trusted, among whom fatness will appear.

حَدَّثَنَا عَمْرُو بْنُ عَوْنٍ، قَالَ أَنْبَأَنَا ح، وَحَدَّثَنَا مُسَدَّدٌ، قَالَ حَدَّثَنَا أَبُو عَوَانَةَ، عَنْ قَتَادَةَ، عَنْ زُرَارَةَ بْنِ أَوْفَى، عَنْ عِمْرَانَ بْنِ حُصَيْنٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ خَيْرُ أُمَّتِي الْقَرْنُ الَّذِينَ بُعِثْتُ فِيهِمْ ثُمَّ الَّذِينَ يَلُونَهُمْ ثُمَّ الَّذِينَ يَلُونَهُمْ ‏"‏ ‏.‏ وَاللَّهُ أَعْلَمُ أَذَكَرَ الثَّالِثَ أَمْ لاَ ‏"‏ ثُمَّ يَظْهَرُ قَوْمٌ يَشْهَدُونَ وَلاَ يُسْتَشْهَدُونَ وَيَنْذِرُونَ وَلاَ يُوفُونَ وَيَخُونُونَ وَلاَ يُؤْتَمَنُونَ وَيَفْشُو فِيهِمُ السِّمَنُ ‏"‏ ‏.‏

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also referenced under: Hadith 4657 (DarusSalam)