Muwatta Imam Malik Book of Madina, Hadith 17

Yahya related to me from Malik from Ismail ibn Abi Hakim that he heard Umar ibn Abd al-Aziz say, "One of the last things that the Messenger of Allah ﷺ said was, 'May Allah fight the jews and the christians. They took the graves of their Prophets as places of prostration . Two deens shall not co-exist in the land of the Arabs.' "

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ إِسْمَاعِيلَ بْنِ أَبِي حَكِيمٍ، أَنَّهُ سَمِعَ عُمَرَ بْنَ عَبْدِ الْعَزِيزِ، يَقُولُ كَانَ مِنْ آخِرِ مَا تَكَلَّمَ بِهِ رَسُولُ اللَّهِ ﷺ أَنْ قَالَ " قَاتَلَ اللَّهُ الْيَهُودَ وَالنَّصَارَى اتَّخَذُوا قُبُورَ أَنْبِيَائِهِمْ مَسَاجِدَ لاَ يَبْقَيَنَّ دِينَانِ بِأَرْضِ الْعَرَبِ " .