Al Ghadir is a twenty-volume book written by the Iranian Shia Scholar Allamah Abd Al Husayn Amini.
The main subject of this book is discussing Hadith of the pond of Khumm according to Sunni documents. In order to do so, Amini has gathered the narrations of 110 companions (Sahaba) as well as 40 followers of Muhammad about the event. He then states the related Hadiths narrated by 360 Hadit narrators between 2nd to 14th centuries of Islamic calendar. Since Sunni Muslims - unlike Shia Muslims - do not consider Ali as the successor of Muhammad, Amini in his book has tried to prove Ali's succession based on Sunni documents. Amini, in writing the book, traveled to different countries in order to take advantage of the libraries there among which were India, Iraq, Pakistan, Morocco, Egypt and some others.
Urdu translation of Al-Ghadir has been done by Adeeb-e-asr Allamah Syed Ali Akhtar Rizvi, a Twelver Shī'ah scholar, speaker, author, historian and poet.
On the request of Grand Ayatollah Naser Makarem Shirazi he stated translation in year 1990. The first volume of which published in year 1991 then in 2010 the complete set of volume got published.