Shri Rudram or RudraPrashna is a part of yajurveda it is generally recited during abhishek/consecration of Lord Shiva or even just to worship him it is stuti of Lord Rudra.
My question is if Rudraprashna is part of yajurveda and it is also recited during Shravan even on restricted tithis, so is it okay because Manu Smriti restricts it.
Restricted tithis are the days when one cannot recite or study vedas. The days are
1) Ashtami: Eighth day from every full-moon/no-moon day
2)Poornima/Purnami: Fullmoon day
3) Krishna Paksha Chaturdashi: one day before no-moon day
4) Amavasya: No-moon day.
Also there are some more restrictions defined, but do they apply to shri Rudram or any other vedic stutis(which are derived from vedas). other Vedic Stutis are Ganpati Atharavashirsha, Purusha Suktam, Bramhanaspati Suktam,Shri Suktam etc.