People close to the clergyman said that he died on Friday hours after being hospitalized for lung complications.
Ayatollah Hasanzadeh Amoli has many publications in the fields of philosophy, mysticism, mathematics and astronomy as well as Persian and Arabic literature.
He has also published a poetry book, comprising about 5,000 verses.
In a message issued on Sunday, Leader of the Islamic Revolution Ayatollah Seyyed Ali Khamenei offered his condolences on the passing of the cleric.
“With deep sorrow, I have received news of the demise of the spiritual scholar and traveler on the path of monotheism, Ayatollah Hasanzadeh Amoli. This learned, multidimensional religious scholar was among the unique and distinguished figures whose limited numbers in any era delight the eyes and hearts of those who know them and benefit from their knowledge, insight, reason, and soul,” the message read.
"The writings and works of this honorable scholar will be a great source for the lovers of knowledge and intricate meanings, God willing. I offer my condolences to all his friends, students, and admirers, especially to the faithful believers and revolutionary people of the city of Amol and also to the enthusiastic youths who were attracted by his revolutionary stances and lofty manners. I ask God to bestow His forgiveness and mercy on him and raise his status.”
Ayatollah Khamenei visits Ayatollah Hassan Hasanzadeh Amoli (L) in hospital in this undated photo.
A week of mourning has been declared in the northern city of Amol.
Ayatollah Hasanzadeh Amoli’s body will be laid to rest on Monday concurrent with Arabaeen ceremonies, which marks 40 days since the martyrdom anniversary of Imam Hussein (AS), the third Shia imam, along with 72 of his companions in the Battle of Karbala, in southern Iraq, in 680 AD.