Muwatta Malik, Book 56, Hadith 19 (USC-MSA) ⓘ

Malik related to me that Safwan ibn Sulaym said, "The Messenger of Allah, may Allah bless him and grant him peace, was asked, 'Can the mumin be a coward?' He said, 'Yes.' He was asked, 'Can the mumin be a miser?' He said, 'Yes.' He was asked, 'Can the mumin be a liar?' He said, 'No.' "

وَحَدَّثَنِي مَالِكٌ، عَنْ صَفْوَانَ بْنِ سُلَيْمٍ، أَنَّهُ قَالَ قِيلَ لِرَسُولِ اللَّهِ صلى الله عليه وسلم أَيَكُونُ الْمُؤْمِنُ جَبَانًا فَقَالَ ‏"‏ نَعَمْ ‏"‏ ‏.‏ فَقِيلَ لَهُ أَيَكُونُ الْمُؤْمِنُ بَخِيلاً فَقَالَ ‏"‏ نَعَمْ ‏"‏ ‏.‏ فَقِيلَ لَهُ أَيَكُونُ الْمُؤْمِنُ كَذَّابًا فَقَالَ ‏"‏ لاَ ‏"‏ ‏.‏