Ibn Dinar reported that a desert Arab met Abdullah b. 'Umar on the way to Mecca. 'Abdullah greeted him and mounted him upon the donkey on which he had been riding and gave him the turban that he had on his head. Ibn Dinar (further) reported
We said to him ('Abdullah b. 'Umar): May Allah do good to you, these are desert Arabs and they are satisfied even with meagre (things). Thereupon Abdullah said: His father was loved dearly by 'Umar b. Khattib and I heard Allah's Messenger (ﷺ) as saying: The finest act of goodness on the part of a son is to treat kindly the loved ones of his father.
'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.
Abdullah b. Dinar reported that when 'Abdullah b. 'Umar set out to Mecea, 'he kept a donkey with him which he used as a diversion from the tedium of journey on the camel's back and had a turban which he tied round his head. One day, as he was riding the donkey a desert Arab happened to pass by him. He ('Abdullah b. 'Umar) said
Arn't you so and so? He said: Yes He gave him his donkey and said: Ride it, and tie the turban round your head. Some of his companions said: May Allah pardon you, you gave to this desert Arab the donkey on which you enjoyed ride for diversion and the turban which you tied round your. head. Thereupon he said: Verily I heard Allah's Messenger (ﷺ) as saying: The finest act of goodness is the kind treatment of a person to the loved ones of his father after his death and the father of this person was a friend of 'Umar.