Musnad Abu Ya'la al-Mawsili 119:12

Abu Bakr ibn Abi Shaybah narrated to us, Ghundar narrated to us, from Shu'bah, who said: I heard Salim ibn Abi al-Ja'd, from Anas, that a man asked the Prophet, may Allah bless him and grant him peace: "When is the Hour?" He said: "And what have you prepared for it?" He said: "I have not prepared for it much prayer, nor fasting, nor charity, except that I love Allah and His Messenger." He said: "Then you are with whom you love."