question #3 Sahih al-Bukhari 291, Book 5, Hadith 43 : How does Islamic law address the requirements of purification after intimate relations?

as the following Hadith 290.Narrated Abu Huraira:The Prophet (ﷺ) said, “When a man sits in between the four parts of a woman and did the sexual
intercourse with her, bath becomes compulsory.”