Assalamu Alaikum, what are adabs of visiting maqam of an awlia? And what are adab of visiting ones relative or parents grave?
wa `alaykum salam,
You may use the Adab of visiting Sayyidina Muhammad (s) in Madina al-Munawwarah from the Naqshbandi Awrad book when visiting the awliya, and add to the greeting, as-salamu `alayk ya <name>.
For visiting parents, address them with love and kindness, tell them how you are and the rest of the family, as they hear and gift them the recitation of Surah Yaseen and Surat al-Mulk (after first gifting to Sayyidina Muhammad (s) and our mashaykh), and make whatever duas for them you like.