Hadith 516190
Chapter 47: Good Character - كتاب حسن الخلق
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ عَمِّهِ أَبِي سُهَيْلِ بْنِ مَالِكٍ، عَنْ أَبِيهِ، عَنْ كَعْبِ الأَحْبَارِ، أَنَّهُ قَالَ إِذَا أَحْبَبْتُمْ أَنْ تَعْلَمُوا مَا لِلْعَبْدِ عِنْدَ رَبِّهِ فَانْظُرُوا مَاذَا يَتْبَعُهُ مِنْ حُسْنِ الثَّنَاءِ .
Yahya related to me from Malik from his paternal uncle, Abu Suhayl ibn Malik from his father that Kab al-Ahbar said, "If you want to know what a slave has with his Lord, then look at whatever good praise follows him."
Reference Muwatta Malik 516190
USC-MSA web (English) reference : Book 47, Hadith 5