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?]
Arabic/English book reference: Vol. 1, Book 1, Hadith 21