Abu Huraira reported: The Messenger of Allah, peace and blessings be upon him, said, "There are certainly people who brag about their ancestors who have died. Verily, they are coal for Hellfire such that they are more contemptible to Allah than the beetle that rolls dung with its nose. Verily, Allah has removed from you the pride of the time of ignorance with its boasting about ancestors. Verily, either one is a believer who fears Allah or a miserable sinner. The people are all the children of Adam, and Adam was created from dust."
Source: Sunan At-Tirmidhi 3955
Grade: Hasan (fair) according to Ibn Hajar
عَنْ أَبِي هُرَيْرَةَ عَنْ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ لَيَنْتَهِيَنَّ أَقْوَامٌ يَفْتَخِرُونَ بِآبَائِهِمْ الَّذِينَ مَاتُوا إِنَّمَا هُمْ فَحْمُ جَهَنَّمَ أَوْ لَيَكُونُنَّ أَهْوَنَ عَلَى اللَّهِ مِنْ الْجُعَلِ الَّذِي يُدَهْدِهُ الْخِرَاءَ بِأَنْفِهِ إِنَّ اللَّهَ قَدْ أَذْهَبَ عَنْكُمْ عُبِّيَّةَ الْجَاهِلِيَّةِ وَفَخْرَهَا بِالْآبَاءِ إِنَّمَا هُوَ مُؤْمِنٌ تَقِيٌّ وَفَاجِرٌ شَقِيٌّ النَّاسُ كُلُّهُمْ بَنُو آدَمَ وَآدَمُ خُلِقَ مِنْ تُرَابٍ
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