Those who questioned Umar bin Khattab said to him, "We have come to ask you about three matters. About a man's voluntary prayer in his home, about the bath required after major ritual impurity, and about what is permissible for a man with his wife when she is menstruating."Umar replied, "Are you sorcerers? You have asked me about something no one has asked me about since I asked the Messenger of Allah ﷺ about it."He said, "Regarding a man's voluntary prayer in his home, it is light, so whoever wishes may illuminate his home with it. Regarding the bath from major ritual impurity, he should wash his private parts, then perform ablution, then pour water over his head three times. Regarding the menstruating wife, he may have what is above the waist-wrapper."
حدثنا محمد بن جعفر حدثنا شعبة قال سمعت
الذين سألوا عمر بن الخطاب فقالوا له إنما أتيناك نسألك عن ثلاث عن صلاة الرجل في بيته تطوعا وعن الغسل من الجنابة وعن الرجل ما يصلح له من امرأته إذا كانت حائضا فقال أسحار أنتم لقد سألتموني عن شيء ما سألني عنه أحد منذ سألت عنه رسول الله ﷺ فقال صلاة الرجل في بيته تطوعا نور فمن شاء نور بيته وقال في الغسل من الجنابة يغسل فرجه ثم يتوضأ ثم يفيض على رأسه ثلاثا وقال في الحائض له ما فوق الإزار
Its isnad is daif because of a break, due to the anonymity of the man from whom Asim bin Amr narrated.Ibn Majah (1:214) narrated what relates to prayer in the house, from the route of Tariq, from Asim, who said, "A group of people from Iraq went out to Umar..." Then he narrated something similar to it from the route of Abu Ishaq, from Asim, from Umayr, the freedman of Umar bin Khattab, from Umar. His commentator quoted from Zawaid, saying that both routes revolve around Asim bin Amr, who is daif. Aqeeli mentioned him among the Duafa, and Bukhari said, "His hadith has not been established."Ibn Hazm, in Muhalla (2:178), quoted what relates to the menstruating woman, from the route of Abu Ishaq, from Asim, that a group of people asked Umar... Then Ibn Hazm said, "It was also narrated from Abu Ishaq, from Umayr, the freedman of Umar, similarly."This shows that the whole hadith was narrated by both routes, connected and mursal. The connected one has a sahih isnad, contrary to what the author of Zawaid said, for Umayr, the freedman of Umar, was mentioned by Ibn Hibban among the trustworthy narrators. And Asim bin Amr is trustworthy, mentioned by Ibn Hibban among the trustworthy narrators.Ibn Abu Hatim said in Jarh wa Tadil (3/1/348), "I asked my father about him, and he said, 'He is truthful.' Bukhari recorded him in his book of Duafa, but I heard my father say, 'He should be moved from there.'"