Abu Hurayrah arrived in Madinah with a small group of his people while the Prophet ﷺ was at Khaybar, having appointed Siba bin Urfutah as his deputy over Madinah.Abu Hurayrah said, "I came up to him as he was leading the dawn prayer, reciting Kaf-Ha-Ya-Ayn-Sad in the first cycle and 'Woe to those who give short measure' [Mutaffifin 83:1] in the second."He said, "I said to myself, 'Woe to so-and-so. When he takes measure for himself he takes it in full, but when he measures out for others he gives short.'"He continued, "When he finished the prayer, he provided us with some provisions, and we journeyed on until we reached Khaybar, which the Prophet ﷺ had already conquered. The Messenger of Allah ﷺ then spoke to the Muslims, and they included us with them in their shares of the spoils."
حدثنا عفان حدثنا وهيب
أن أبا هريرة قدم المدينة في رهط من قومه والنبي ﷺ بخيبر وقد استخلف سباع بن عرفطة على المدينة قال فانتهيت إليه وهو يقرأ في صلاة الصبح في الركعة الأولى ب كهيعص وفي الثانية ويل للمطففين قال فقلت لنفسي ويل لفلان إذا اكتال اكتال بالوافي وإذا كال كال بالناقص قال فلما صلى زودنا شيئا حتى أتينا خيبر وقد افتتح النبي ﷺ خيبر قال فكلم رسول الله ﷺ المسلمين فأشركونا في سهامهم
Its isnad is sahih. Khuthaym, with the kha with a dot pronounced with damma and the tha with three dots pronounced with fatha, appears in the original as "Hushaym," with the dotless ha and the shin, which is a misreading. Ibn Hajar attributed the hadith in al-Isabah 3:63 to Ibn Khuzayma, Tahawi, and al-Tarikh al-Saghir of Bukhari, and in the manuscript it appears as "Khushaym," which is also a misreading.