Hadith
وَأَخْبَرَنِي عُبَيْدُ اللَّهِ بْنُ عَبْدِ اللَّهِ بْنِ عُتْبَةَ، أَنَّ عَائِشَةَ، وَعَبْدَ اللَّهِ بْنَ عَبَّاسٍ، رضى الله عنهم قَالاَ لَمَّا نَزَلَ بِرَسُولِ اللَّهِ صلى الله عليه وسلم طَفِقَ يَطْرَحُ خَمِيصَةً لَهُ عَلَى وَجْهِهِ، فَإِذَا اغْتَمَّ كَشَفَهَا عَنْ وَجْهِهِ وَهْوَ كَذَلِكَ يَقُولُ " لَعْنَةُ اللَّهِ عَلَى الْيَهُودِ وَالنَّصَارَى، اتَّخَذُوا قُبُورَ أَنْبِيَائِهِمْ مَسَاجِدَ ". يُحَذِّرُ مَا صَنَعُوا.
Aisha and `Abdullah bin `Abbas said, "When Allah's Messenger (ﷺ) became ill seriously, he started covering his face with his woolen sheet, and when he felt short of breath, he removed it from his face and said, 'That is so! Allah's curse be on the Jews and the Christians, as they took the graves of their prophets as (places of worship),' intending to warn (the Muslims) of what they had done
Sahih
Sahih al-Bukhari 4444 ·Book 64, Hadith 464·Also available on sunnah.com·