Lisan al-Mizan (Arabic: لسان الميزان, romanized: Lisān al-Mīzān) is one of the classic book of Ilm al-Rijal (Science of Narrators or Biographical evaluation) written by Hafiz Ibn Hajar al-Asqalani (d.852 AH) in the 9th century of Islamic History.
[1][2][3] This book is actually the rework of Imam al-Dhahabi book by the name of Mizan al-Itidal.
Ibn Hijr has refined it, made this work expansive and named it as Lisan al-Mizan.
It is one of the most popular book in the field of Ilm al-Rijal (Science of Narrators or Biographical evaluation) and contains more than 6000 pages.
[4] The book has been published by many organizations around the world: