It is narrated from Hazrat Aisha (may Allah be pleased with her) that once we did so and performed ghusl; the meaning is that if a man has intercourse with his wife and there is no ejaculation (he should still perform ghusl).
Hadith Referenceمسند احمد / مسند النساء / 24391
Hadith Gradingحکم دارالسلام:حديث صحيح ، أشعث بن سوار إن كان ضعيفا ولكن توبع