Sayyiduna Abu Huraira (may Allah be pleased with him) narrated from the Messenger of Allah (peace and blessings be upon him), he (peace be upon him) said: "When he sits between her four limbs, then makes an effort (has intercourse), then ghusl becomes obligatory upon him." Mutar (the narrator) has added: even if there is no ejaculation.
Hadith Referenceمسند اسحاق بن راهويه / كتاب الطهارة / 81
Hadith Takhrij«بخاري ، كتاب الغسل . . باب اذا التقي الختانان ، رقم : 291 . مسلم ، كتاب الحيض ، باب نسخ الماء من الماء ، رقم : 348 . مسند احمد : 393/2 . سنن دارمي ، رقم : 861»
Sayyiduna Abu Hurairah (may Allah be pleased with him) narrated from the Messenger of Allah (peace and blessings be upon him), he (peace be upon him) said: "When he sits between her four limbs and then exerts himself (has intercourse), then ghusl (ritual bath) becomes obligatory upon him."
Hadith Referenceمسند اسحاق بن راهويه / كتاب الطهارة / 82