Sahih al-Bukhari 529
Narrated Ghailan:
Anas said, "I do not find (now-a-days) things as they were (practiced)
     at the time of the Prophet." Somebody said "The prayer (is as it 
     was.)" Anas said, "Have you not done in the prayer what you have 
     done?
حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، قَالَ حَدَّثَنَا مَهْدِيٌّ، عَنْ غَيْلاَنَ، عَنْ أَنَسٍ، قَالَ مَا أَعْرِفُ شَيْئًا مِمَّا كَانَ عَلَى عَهْدِ النَّبِيِّ صلى الله عليه وسلم‏.‏ قِيلَ الصَّلاَةُ‏.‏ قَالَ أَلَيْسَ ضَيَّعْتُمْ مَا ضَيَّعْتُمْ فِيهَا‏.‏