Hadith
حَدَّثَنَا الْقَعْنَبِيُّ، عَنْ مَالِكٍ، ح وَحَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا حَمَّادٌ، عَنْ سُهَيْلِ بْنِ أَبِي صَالِحٍ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " إِذَا سَمِعْتَ " . وَقَالَ مُوسَى " إِذَا قَالَ الرَّجُلُ هَلَكَ النَّاسُ فَهُوَ أَهْلَكُهُمْ " . قَالَ أَبُو دَاوُدَ قَالَ مَالِكٌ إِذَا قَالَ ذَلِكَ تَحَزُّنًا لِمَا يَرَى فِي النَّاسِ - يَعْنِي فِي أَمْرِ دِينِهِمْ - فَلاَ أَرَى بِهِ بَأْسًا وَإِذَا قَالَ ذَلِكَ عُجْبًا بِنَفْسِهِ وَتَصَاغُرًا لِلنَّاسِ فَهُوَ الْمَكْرُوهُ الَّذِي نُهِيَ عَنْهُ .
Narrated AbuHurayrah: The Prophet (ﷺ) said: When you hear....(Musa's version has): When a man says people have perished, he is the one who has suffered that fate most. Abu Dawud said: Malik said: If he says that out of sadness for the decadence of religion which he sees among the people, I do not think there is any harm in that. If he says that out of self-conceit and servility of the people, it is an abominable act which has been prohibited
Sahih · Al-Albani
Sunan Abi Dawud 4983 ·Book 43, Hadith 211·Also available on sunnah.com·