For those unable to go for the ziarat of Imam Husain (A.S.) on the day of A'ashura, Imam Baqir (A.S.) mentions the manner of performing A'zadari as follows:
He should mourn over Husain (A.S.), weep for him and instruct the members of the house to weep for him. He should establish the mourning ceremony in the house by exhibiting lamentations and grief over him; the people should meet one another in their homes and offer condolences and consolation to each other over the calamities which befell him.
Kaamil al‑Ziyaraat pg. 175