One of the finest acts of kindness is for a man to treat his father’s friends in a kindly way after he has departed.

قَالَ رَسُولُ اللَّهِ ﷺ إِنَّ أَبَرَّ الْبِرِّ صِلَةُ الْمَرْءِ أَهْلَ وُدِّ أَبِيهِ بَعْدَ أَنْ يُوَلِّيَ