Having drops of urine discharge after performing Istinja'

Q 7: My problem is that during the winter, sometimes drops of urine are discharged in my clothes after Istinja' (cleansing the private parts with water after urination or defecation) or Wudu' (ablution) because of the cold weather. What is the ruling on this? Is my Salah (Prayer) valid although my clothes are Najis (ritually impure) because of this urine? (Part No. 4; Page No. 37

A: If you are sure that drops of urine come out after Wudu', you should perform Istinja' and then perform Wudu' again. The validity of Wudu' depends on the cessation of things that invalidate it. You should also wash your clothes and your body if they are affected by urine.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.