It was narrated that:

The Messenger of Allah passed by one of the gardens of Makkah or Al-Madinah and heard the sound of two men being tormented in their graves. The Messenger of Allah said: "They are being punished but they are not being punished for anything that was difficult to avoid." Then he said: "Indeed, one of them used not to take care to avoid getting urine on his body or clothes, and the other used to walk around spreading gossip." They he called for a palm stalk which he broke in two and placed a piece of it on each grave. It was said to him: "O Messenger of Allah, why did you do that?" He said: "May it be reduced for them so long as this does not dry out" or: "until this dries out."

أَخْبَرَنَا مُحَمَّدُ بْنُ قُدَامَةَ، قَالَ حَدَّثَنَا جَرِيرٌ، عَنْ مَنْصُورٍ، عَنْ مُجَاهِدٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ مَرَّ رَسُولُ اللَّهِ ﷺ بِحَائِطٍ مِنْ حِيطَانِ مَكَّةَ أَوِ الْمَدِينَةِ سَمِعَ صَوْتَ إِنْسَانَيْنِ يُعَذَّبَانِ فِي قُبُورِهِمَا فَقَالَ رَسُولُ اللَّهِ ﷺ " يُعَذَّبَانِ وَمَا يُعَذَّبَانِ فِي كَبِيرٍ " . ثُمَّ قَالَ " بَلَى كَانَ أَحَدُهُمَا لاَ يَسْتَبْرِئُ مِنْ بَوْلِهِ وَكَانَ الآخَرُ يَمْشِي بِالنَّمِيمَةِ " . ثُمَّ دَعَا بِجَرِيدَةٍ فَكَسَرَهَا كِسْرَتَيْنِ فَوَضَعَ عَلَى كُلِّ قَبْرٍ مِنْهُمَا كِسْرَةً فَقِيلَ لَهُ يَا رَسُولَ اللَّهِ لِمَ فَعَلْتَ هَذَا قَالَ " لَعَلَّهُ أَنْ يُخَفَّفَ عَنْهُمَا مَا لَمْ يَيْبَسَا أَوْ أَنْ يَيْبَسَا " .