(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. (RU)
Reference (RU): Sahih Muslim 2552 b (RU)
In-book reference (RU): Book 45, Hadith 14 (RU)
USC-MSA web (English) reference(deprecated numbering scheme): Book 32, Hadith 6193 (RU)