1. Whenever he speaks, he tells a lie.
2. Whenever he promises, he always breaks it (his promise ).
3. If you trust him, he proves to be dishonest. (If you keep something as a trust with him, he will not return it.)"
In-book : Book 2, Hadith 26
USC-MSA web (English) : Vol. 1, Book 2, Hadith 33 (deprecated)