Al-Kāfi
Hadith 98021ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ عَلِيِّ بْنِ أَسْبَاطٍ عَنْ أَبِي الْحَسَنِ الرِّضَا (عَلَيهِ السَّلام) قَالَ قَالَ أَمِيرُ الْمُؤْمِنِينَ (عَلَيهِ السَّلام) لا تُبْدِيَنَّ عَنْ وَاضِحَةٍ وَقَدْ عَمِلْتَ الأعْمَالَ الْفَاضِحَةَ وَلا تَأْمَنِ الْبَيَاتَ وَقَدْ عَمِلْتَ السَّيِّئَاتِ.
21. A number of our people have narrated from Sahl ibn Ziyad from Ali ibn Asbat from abu al-Hassan al-Rida (a.s.) who has said the following: “Amir al-Mu’minin, Ali ibn abu Talib (a.s.) has said, ‘Do not show your teeth (smile) if you have committed disgraceful sins. Do not feel safe from misfortunes if you have performed evil deeds.’”