«إذا أفضى أحدكم بيده إلى فرجه فليتوضأ» .
(صحيح) … [ن] عن بسرة بنت صفوان. الصحيحة *1235: ك)
From the words of Busra bint Sabfan, the Prophet (peace and blessings of Allaah be upon him) said: ‘ Whoever touches his private part, let him perform Wudu’.
Grade: صحيح
Sheikh al-Albani called the hadith authentic. See Saheeh al-jami ‘as-saghir 361.