Chapter 1: The Book of the Sunnah
It was narrated from Abu Hurairah that: The Prophet said "I do not want to hear of anyone of you who, upon hearing a Hadith narrated from me, says while reclining on his pillow: 'Recite Qur' an (to verify this Hadith).' (Here the Propher SAW said) Any excellent word that is said, it is I who have said it." [How can you reject what I have said?]
Sunan Ibn Majah 21