ENOfficial
It was narrated from Ibn ‘Umar, from his father, that the Prophet (ﷺ) said: `The deceased is tormented in his grave because of being wailed over.` Al-Hajjaj said: `...because of the wailing over him.`
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، وَحَجَّاجٌ، قَالَ حَدَّثَنِي شُعْبَةُ، قَالَ سَمِعْتُ قَتَادَةَ، يُحَدِّثُ عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، عَنِ ابْنِ عُمَرَ، عَنْ أَبِيهِ، عَنْ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ الْمَيِّتُ يُعَذَّبُ فِي قَبْرِهِ بِمَا نِيحَ عَلَيْهِ وَقَالَ حَجَّاجٌ بِالنِّيَاحَةِ عَلَيْهِ.
sunnah.com