Anas reported that a Bedouin said to the Messenger of Allah, may Allah bless him and grant him peace, "When will the Hour come?" The Messenger of Allah, may Allah bless him and grant him peace, said, "How have you prepared for it?" He said, "With love of Allah and His Messenger." He said, "You will be with the one you love."
Riyadh-as-Saliheen by Imam Al-Nawawi, volume 3, hadith number 369 - Sunni Hadith