Wa alaikum salaam,

If you performed a new wudhu for maghrib and Isha, your prayers are
valid.

Assalaammualaikum.Bro,Today while coughing I pass few drops of urine in my ezzar(pant)and forgetfulness I prayed muqrib and isha fard but I realised in my sunna prayer ,then I just prayed witr after cleaning myself .what should we do if this happen any time .jazzalallahu khairan