(57) باب قِرَاءَةِ الْفَاجِرِ وَالْمُنَافِقِ، وَأَصْوَاتُهُمْ وَتِلاَوَتُهُمْ لاَ تُجَاوِزُ حَنَاجِرَهُمْ
Narrated Abu Musa:
The Prophet (ﷺ) said, 'The example of a believer who recites the Qur'an is that of a citron (a citrus fruit) which is good in taste and good in smell. And the believer who does not recite the Qur'an is like a date which has a good taste but no smell. And the example of an impious person who recites the Qur'an is that of Ar-Rihana (an aromatic plant) which smells good but is bitter in taste. And the example of an impious person who does not recite the Qur'an is that of a colocynth which is bitter in taste and has no smell."
Reference: Sahih al-Bukhari 7560
In-book reference: Book 97, Hadith 185
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 9, Book 93, Hadith 649