Hadith 348
Abu Hurairah (RA) reported: The Apostle of Allah (ﷺ) said: When a man has sexual intercourse, bathing becomes obligatory (both for the male and the female). In the hadith of Matar the words are: Even if there is no orgasm. Zuhair has narrated it with a minor alteration of words.
Hadith 350
'A'isha the wife of the Apostle of Allah (ﷺ) reported. A person asked the Messenger of Allah (ﷺ) about one who has sexual intercourse with his wife and parts away (without orgasm) whether bathing is obligatory for him. 'A'isha was sitting by him. The Messenger of Allah (ﷺ) said: I and she (the Mother of the Faithful) do it and then take a bath.