Hadith 9964
عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ ثِنْتَانِ هُمَا بِالنَّاسِ كُفْرٌ نِيَاحَةٌ عَلَى الْمَيِّتِ وَطَعْنٌ فِي النَّسَبِ
Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: There are two things found among people which are acts of disbelief: wailing over the dead and casting aspersions on lineage.
Hadith 9965
عَنْ أَبِي بَكْرَةَ رَضِيَ اللَّهُ عَنْهُ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ ذَنْبَانِ مُعَجَّلَانِ لَا يُؤَخَّرَانِ الْبَغْيُ وَقَطِيعَةُ الرَّحِمِ
Narrated from Sayyiduna Abu Bakrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: There are two sins whose punishment is hastened, and there is no delay in their matter: one is rebellion and the other is severing ties of kinship.