Musnad Ahmad 28:331

Waki’ narrated to us, al-A’mash narrated to us, from Zayd ibn Wahb, from ‘Abd al-Rahman ibn ‘Abd Rabb al-Ka’bah, from ‘Abdullah ibn ‘Amr, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Whoever wishes to be distanced from the Fire and to enter Paradise, let his death come to him while he believes in Allah and the Last Day, and let him treat people as he would love to be treated."