Narrated Abu Huraira: The Prophet said, "Whoever does not give up false statements (i.e. telling lies), and evil deeds, and speaking bad words to others, Allah is not in need of his (fasting) leaving his food and drink."
Hadith ReferenceSahih Bukhari / The Book of Al-Adab (Good Manners) / Hadith: 6057
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة