ENOfficial
It was narrated from ʼUmar that: The Prophet (ﷺ) said: `The deceased is tormented in his grave because of the wailing for him.`
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا يَحْيَى، حَدَّثَنَا شُعْبَةُ، حَدَّثَنَا قَتَادَةُ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، عَنِ ابْنِ عُمَرَ، عَنْ عُمَرَ، عَنْ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ الْمَيِّتُ يُعَذَّبُ فِي قَبْرِهِ بِالنِّيَاحَةِ عَلَيْهِ.
sunnah.com