What is the ruling on designating Friday specifically for visiting graves?

Question:
The questioner says: Some people designate Friday for visiting graves. Is this permissible?

Answer:
Visiting graves to greet the deceased and make du'a for them is prescribed. It serves as a reminder of the Hereafter, so that one may take heed and reflect upon death, and to make du'a for the deceased and greet them. This is prescribed, and the Prophet (peace and blessings be upon him) commanded it, saying: "Visit the graves, for they remind you of the Hereafter." However, if the intention behind visiting graves is...
...seeking blessing from the deceased or asking them for needs, then this is a visit of shirk (associating partners with Allah) and is forbidden. This is a visit of shirk and is forbidden because it is du'a to other than Allah and holding the belief in other than Allah that He benefits and harms. This is shirk. As for the first type, it is prescribed: visiting them to greet the deceased, make du'a for them for forgiveness, and take heed from death. The graves remind one of the Hereafter. This has no specific time. It is a recommended, prescribed act with no fixed time, such as Friday. You may visit the deceased whenever it is convenient for you, whether on Friday or on any other day.