1 Al-Bukhari, nos. 3045, 3989, 4086, 7402. All explanations of unusual vocabulary are taken from Fath al-Bari, 7/379–385, except where I have signalled otherwise. 2 On the phrase “he found Asim the son of Umar”: al-Hafiz Ibn Hajar comments, “Asim b. Thabit has been described as the maternal grandfather of Asim b. Umar b. al-Khattab; this is a mistake by one of the transmitters, for Asim b. Thabit was actually Asim b. Umar’s maternal uncle, not his grandfather. Asim’s mother was Jamila bt. Thabit, the sister of Asim; her original name was Asiya, and the Prophet changed it.” 3 On the word “bil-huda’ah”: the al-Akbar recension vocalises it with a sukun on the dal followed by a fully pronounced hamza; the Kushmihani transmission has a fathah on the dal with the hamza eased; Ibn Ishaq records al-huddah, with a doubled dal and no alif, adding, “It lies seven miles from Asfan.” 4 The manuscript reads “Asfan”; the correct reading, adopted here and found in al-Bukhari, is the one printed above. 5 On the phrase “they are called Banu Lihyan”: the lam in Lihyan may be read with a kasrah—some read it with a fathah—and the ha is quiescent. Lihyan is the very son of Hudhayl, and Hudhayl is the son of Madrakah b. Ilyas b. Mudar. 6 The manuscript erroneously has “yahnū Yathrib”; the wording adopted here follows the reading in al-Bukhari.