Ibn Khuthaym is ʿAbdullāh ibn ʿUthmān ibn Khuthaym, and Ibn Sābiṭ is ʿAbd al-Raḥmān ibn ʿAbdullāh ibn Sābiṭ al-Jumaḥī al-Makkī, and Ḥafṣah is the daughter of ʿAbd al-Raḥmān ibn Abī Bakr al-Ṣiddīq. And it is narrated: "in a single poison."

3222 — ʿAbd ibn Ḥumayd narrated to us, saying: al-Ḥasan ibn Mūsā narrated to us, saying: Yaʿqūb ibn ʿAbdillāh al-Ashʿarī narrated to us, from Jaʿfar ibn Abī al-Mughīrah, from Saʿīd ibn Jubayr, from Ibn ʿAbbās, who said: ʿUmar came to the Messenger of Allah, peace and blessings be upon him, and said: "O Messenger of Allah, I am ruined!" He said: "And what has ruined you?" He said: "I turned my saddle [i.e., approached my wife from behind] last night." He said: "And the Messenger of Allah, peace and blessings be upon him, did not reply to him with anything." He said: "Then this verse was revealed to the Messenger of Allah, peace and blessings be upon him: {Your wives are a tilth for you, so come to your tilth however you wish} [al-Baqarah: 223] — from the front and from the back, but avoid the anus and menstruation."

This is a ḥasan gharīb ḥadīth, and Yaʿqūb ibn ʿAbdillāh al-Ashʿarī is Yaʿqūb al-Qummī.

(1) A ḥasan ḥadīth, also recorded by al-Nasāʾī in al-Kubrā (8977) and (11040). It is in Musnad Aḥmad (2703), and Ṣaḥīḥ Ibn Ḥibbān (4202).

His saying: "I turned my saddle last night" — Ibn al-Athīr said in al-Nihāyah 2/209: He used "his saddle" as a euphemism for his wife, meaning he had intercourse with her in her front from the direction of her back, because the one who has intercourse mounts the woman and rides her from the side facing her face; so when he mounted her from the direction of her back, he used a euphemism for it by "turning his saddle" — either meaning thereby the dwelling and abode, or meaning thereby the saddle upon which camels are ridden.