: In many Muslim societies, these records are kept to preserve the family's social and religious standing, ensuring that the history of their ancestors' migrations and contributions to Islamic scholarship is not lost.
: Authentic Shajras often cite classical biographical and genealogical texts such as Majalis-ul-Momineen or Ahsan-ut-Tawarikh to provide scholarly backing for the lineage. shajra e sadat
: It identifies specific sub-groups within the Sayyid community based on prominent ancestors or geographic migrations, such as: Zaydi : Descendants of Zayd ibn Ali. Rizvi/Radawi : Descendants of Imam Ali al-Ridha. : In many Muslim societies, these records are
: Lineages associated with the Chishti Order, like the Shajra-e-Sadat-e-Hasaniya which documents the ancestry of Hazrat Khwaja Moinuddin Chishti. Rizvi/Radawi : Descendants of Imam Ali al-Ridha
: The primary function is to document the "Silsila" (chain) of descent. Most Shajras trace back through one of the two grandsons of the Prophet: Imam Hasan (Hasani Sadat) or Imam Husayn (Husayni Sadat).
: Descendants of Imam Ali al-Hadi (also known as al-Naqi).