Musnad Ahmad 30:1688

Khalaf ibn al-Walid narrated to us, he said: Ayyub ibn Utbah narrated to us, from Yahya ibn Abi Kathir, from Abu Salamah, from Abu Hurairah, who said: When the Messenger of Allah, peace and blessings of Allah be upon him, would pray over a funeral, he would say: "O Allah, forgive our living and our dead, our present and our absent, our young and our old, and our male and our female. O Allah, whoever among us You keep alive, then keep him alive upon Islam, and whoever among us You take in death, then take him in death upon faith."