Is it prescribed to face the qiblah when making du'a' for a deceased person at his grave?

Question:
After greeting the deceased, and when one intends to make du'a' for him, do the people face the qiblah during the du'a'?

Answer:
If one intends to make du'a' for the deceased, he faces the qiblah, stands at his grave, faces the qiblah, and makes du'a' for him. As for greeting the deceased, one does so at the face of the deceased, opposite the face of the deceased, and greets him as one would a living person.