(17) باب فَضْلِ الْقُرْآنِ عَلَى سَائِرِ الْكَلاَمِ
Narrated Abu Musa Al-Ash`ari:
The Prophet (ﷺ) said, "The example of him (a believer) who recites the Qur'an is like that of a citron which tastes good and smells good. And he (a believer) who does not recite the Qur'an is like a date which is good in taste but has no smell. And the example of a dissolute wicked person who recites the Qur'an is like the Raihana (sweet basil) which smells good but tastes bitter. And the example of a dissolute wicked person who does not recite the Qur'an is like the colocynth which tastes bitter and has no smell.
Reference: Sahih al-Bukhari 5020
In-book reference: Book 66, Hadith 42
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 6, Book 61, Hadith 538