Answered by SunniPath Answer Service Team
Please explain the terms Bid`atun Hasanah and Bid`atun Munkar according to Ash Shafi fiqh with examples inshaAllah. Did these terms come from Imam Ash-Shafi or his students such as Al-Bayhaqi and Al-Subki?
Walaikum assalam wa rahmatullah,
This is explained in sufficient detail by Shaykh Nuh Keller in his article at www.masud.co.uk.
What he writes is confirmed by all the major authorities of the Shafi`i school, early and late, and established from Imam Shafi`i himself.