(51) باب قَوْلِ اللَّهِ تَعَالَى {وَاجْتَنِبُوا قَوْلَ الزُّورِ}
Narrated Abu Huraira:
The Prophet (ﷺ) 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."
Reference: Sahih al-Bukhari 6057
In-book reference: Book 78, Hadith 87
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 73, Hadith 83