What is the duration of Nifas according to Shafii Fiqh?

Wa alaykum salam wa rahmatuLlahi wa barakatuHu,

The minimum duration for post-natal bleeding (ar. nifas) is a moment, its maximum is sixty days, and its average is forty. (Minhaj al-Talibin p. 20)

And Allah knows best.

Answered by Shaykh Yaqub Abdurrahman