(4) باب فَضْلِ صِلَةِ أَصْدِقَاءِ الأَبِ وَالأُمِّ وَنَحْوِهِمَا
'Abdullah b. Umar reported Allah's Apostle (ﷺ) as saying:
The finest act of goodness is that a person should treat kindly the loved ones of his father. (IT)
Reference (IT): Sahih Muslim 2552 b (IT)
In-book reference (IT): Book 45, Hadith 14 (IT)
USC-MSA web (English) reference(deprecated numbering scheme): Book 32, Hadith 6193 (IT)