(3) باب إزالة النجاسة وبيانها
Narrated 'Aisha (rad):
Allah's Messenger (ﷺ) used to wash the semen and then go out for prayer in that (very) garment and I could still see the trace of the washing on it. [Agreed upon] (ID)
Reference (ID): Bulugh al-Maram 27 (ID)
In-book reference (ID): Book 1, Hadith 31 (ID)
English translation (ID): Book 1, Hadith 30 (ID)