[1][2] He used about 400 sources written by such Sunni and Shia scholars as Shaykh al-Saduq, Shaykh Tusi, Al-Shaykh Al-Mufid, Sharif al-Murtaza, Muhammad Jamaluddin al-Makki al-Amili, Sayyed Ibn Tawus, Al-Hilli, Zayn al-Din al-Juba'i al'Amili.

The full title of the book is:Biḥār al-ʾAnwār al-Jāmiʿah li-Durar ʾAkhbār al-ʾAʾimmah al-Aṭhār (Arabic: بِحَار ٱلْأَنْوَار ٱلْجَامِعَة لِدُرَر أَخْبَار ٱلَأَئِمَّة ٱلْأَطْهَار)

Oceans of Lights: The Compendium for Pearls of Traditions of the Pure Imams)This lengthy title indicates Majlisi collected anything he had access to in the book.

[4] Majlisi has acknowledged the forgery issue in the preface of Bihar al-Anwar, emphasizing that the traditions collected were not included without extensive scrutiny, although a consequence of his approach was that he has gathered both "pearls" and "pebbles".

The compilation of Bihar al-Anwar took 36 years, during which Majlisi received aid from other scholars and his students.