(1) Masaʾil Harb, fol. 18. (2) It is authentically established that the Prophet performed istinja (cleansing after relieving oneself) with water, as in the hadith of Anas: “Whenever the Messenger of Allah ﷺ entered the privy, I and another boy would bring him a small water-skin and an ʿanazah (a short spear), and he would cleanse himself with the water.” Reported by al-Bukhari, Sahih, Book of Wudu, chapters “Istinja with water” and “Carrying the ʿanazah together with water for istinja,” 1/68–69, nos. 149–151; and by Muslim, Sahih, Book of Purification, no. 271. (3) Reported by Ahmad, Musnad 6/137, 219, 227; Ibn Majah, no. 324; al-Bukhari, al-Tarikh al-Kabir 3/156; Ibn al-Mundhir, al-Awsat 1/no. 261; al-Tahawi, Sharh Maʿani al-Athar 4/234; al-Daraqutni, Sunan 1/59–60; al-Bayhaqi, al-Sunan al-Kubra 1/92–93; and others. The isnad is weak and the text anomalous: ʿArak never heard directly from ʿAishah, as stated in Ibn Abi Hatim’s al-Marasil, no. 606. Al-Bukhari and Abu Hatim al-Razi ruled the report mawquf; see al-Tarikh al-Kabir 3/156 and Ibn Abi Hatim’s ʿIlal 1/29. Al-Bukhari’s wording is: “ʿAishah rejected their claim, ‘Do not face the qiblah.’” See also al-Daraqutni’s ʿIlal 5/93b. (4) In manuscript H the wording is wa yurwi (“and he relates”). I say: this narration is absent from the printed Musnad because Imam Ahmad told his son ʿAbd Allah to strike it out, saying, “Delete the hadith of Jaʿfar ibn al-Zubayr.” See al-ʿIlal wa Maʿrifat al-Rijal (transmission of ʿAbd Allah ibn Ahmad) 3/206, no. 4887.