Musnad Abu Ya'la al-Mawsili 155:305

Muhammad ibn Qudamah narrated to us, Hajjaj ibn Muhammad narrated to us, from Ibn Jurayj, from Ibrahim ibn Muhammad ibn Abi ‘Ata, from Musa ibn Wardan, from Abu Hurayrah, who said: The Messenger of Allah (may Allah bless him and grant him peace) said: "Whoever dies while ill, dies a martyr, and is protected from the two trials of the grave, and his provision from Paradise is brought to him morning and evening."