Question Summary:
What is the basis for Durood Nariya, Durood Akbar?

Question Detail:

What is the basis for Durood Nariya, Durood Akbar. They are not even mentioned in Hadith then how come these duroods are there?

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
We have not come across Durood Naariyyah and Durood Akbar in any authentic source.
The best form of durood (duas and salutations) upon Rasulullah Sallahu Alayhi Wa Sallam are those that are recommended by Rasulullah Sallahu Alahy Wa Sallam himself. There are many well established Durood (Salaat and Salaam upon Rasulullah salallahu alayhi wasallam), mentioned in the Ahadith. Hadhrat Sheikh Zakariyyah rahimahullah has compiled 40 Durood from Ahadith, which may be found at http://veiledgems.files.wordpress.com/2013/03/40_durood_with_meaning__transliteration.pdf
 
And Allah Ta’āla Knows Best
Arshad Ali
Student Darul Iftaa
Trinidad
Checked and Approved by,
Mufti Ebrahim Desai.
http://www.daruliftaa.net/