It is narrated from the Companion of the Messenger, Sayyiduna Abu Usaid Sa‘idi (may Allah be pleased with him), who was a participant of Badr and his freed slave, that he said: I was sitting with the Messenger of Allah (peace and blessings be upon him) when an Ansari man came to him and said: Is there anything left, after the death of my parents, by which I can do good to them? The Messenger of Allah (peace and blessings be upon him) said: Yes, absolutely, there are four things: praying for mercy for them, seeking forgiveness for them, fulfilling their promises, honoring their friends, and maintaining ties with those who are related only through them. These are the matters that remain upon you even after their death.