Determine the correctness of the following Assertion (A) and Reason (R) based on the Paniniya Shiksha:
Assertion (A): According to the Paniniya Shiksha, the number of 'Sparsha' (stop consonants) is twenty-five.
Reason (R): The text states that "Shikhi rauti dvimatram" (The peacock cries with two measures).