(180) بَابُ لا يَصْلُحُ الْكَذِبُ
'Abdullah said, "Lying is not correct, neither in seriousness nor in jest. None of you should promise his child somethingand then not give it to him."
Reference: Al-Adab Al-Mufrad 387
In-book reference: Book 21, Hadith 3
English translation: Book 21, Hadith 387