حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا خَالِدٌ، حَدَّثَنَا سُهَيْلُ بْنُ أَبِي صَالِحٍ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ لأَنْ يَجْلِسَ أَحَدُكُمْ عَلَى جَمْرَةٍ فَتَحْرِقَ ثِيَابَهُ حَتَّى تَخْلُصَ إِلَى جِلْدِهِ خَيْرٌ لَهُ مِنْ أَنْ يَجْلِسَ عَلَى قَبْرٍ ‏"‏ ‏.‏

Narrated Abu Hurairah: The Messenger of Allah (PBUH) as saying: It is better that one of you should sit on the live coals which burns his clothing and come in contact with his skin than that he should sit on a grave. Translation Not Available

Book Ref: Sunan Abi Dawud Book 21 Hadith 3228
Web Ref:  Sunan Abi Dawud Book 20 Hadith 3222