Scripture? There's tons in Koranic verse (5)
I believe the answer is:
sutra
'scripture?' is the definition.
(I know that sutra is a type of Buddhist text)
'tons in koranic verse' is the wordplay.
'tons' becomes 't'.
'in' means one lot of letters goes inside another.
'koranic verse' becomes 'sura' (a sura is a section of the Qur'an).
't' inserted inside 'sura' is 'SUTRA'.
'there's' acts as a link.
(Other definitions for sutra that I've seen before include "Ornamental arm band" , "Book of aphorisms" , "A Buddhist scripture" , "Buddhist text" , "Rule or aphorism in Sanskrit literature" .)