عَنْ جَابِرِ بْنِ عَبْدِ اللَّهِ رَضِيَ اللَّهُ عَنْهُمَا قَالَ: سَمِعْتُ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ يَنْهَى أَنْ يُقْعَدَ عَلَى الْقَبْرِ وَأَنْ يُقَصَّصَ أَوْ يُنْبَى عَلَيْهِ
Sayyiduna Jabir bin Abdullah (may Allah be pleased with him) says: I heard the Noble Prophet (peace and blessings be upon him) forbidding sitting on the grave, plastering it with lime, and constructing a building over it.