Muwatta Imam Malik Book of Jihad, Hadith 36

Yahya related to me from Malik from Nafi from Abdullah ibn Umar that Umar ibn al-Khattab was washed and shrouded and prayed over, yet he was a martyr, may Allah have mercy on him .

حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّ عُمَرَ بْنَ الْخَطَّابِ، غُسِّلَ وَكُفِّنَ وَصُلِّيَ عَلَيْهِ وَكَانَ شَهِيدًا يَرْحَمُهُ اللَّهُ .