Sunnat-e-Muakkadah aur Sunnat-e-Ghair Muakkadah

Sunnat namaaz ki niyyat

Q: Mera sawaal ye he ke sunnat-e-muakaddah or ghair muakaddah ki niyyat kya ho gi? Or ye lafz muakkadah he ya mukaddah he ye bhi bata de? Aur ayk aur sawaal he ke nafil jo zohar main parhte hain us ki niyat kya ho gi kya wo bhi wastay allah eparhe jate he ya waste sawaab ke?