Sunnah Determination
Sunnah has been listed in the book Meezan by Ghamidi Saheb and its concise version al-Islam. Sunnah is specific acts that cannot be added or subtracted. However, one may differ in counting a non-sunnah act as sunnah which may be just a nafal or popular act like saying Azan in the ear of of a newborn. Certain Azkar in prayer are sunnah but all, post prayer azkar are not sunnah. Tahajjud prayer is sunnah. No other nafar prayer is sunnah (sunah moakkida is also a nafal prayer). Fasting other than Ramzan is not sunnah. it does not mean that these nafal prayers of fasting are not proven, some of them are, but the prophet did not appoint them as his sunnah. An act to be called Sunnah needs to fulfill certain criteria as described in Meezan in the chapter of Sunnah.