Sahih Bukhari
Good Manners and Form (Al-Adab)
Volume: 008 / Book Number: 073 / Hadith Number: 192
Narrated Anas bin Malik:
A man asked the Prophet "When will the Hour be established O Allah's Apostle?" The Prophet . said, "What have you prepared for it?" The man said, " I haven't prepared for it much of prayers or fast or alms, but I love Allah and His Apostle." The Prophet said, "You will be with those whom you love."