Mustadrak al-Hakim — Hadith 2272

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that when the Messenger of Allah (peace and blessings be upon him) set out for Khaybar, he (peace and blessings be upon him) appointed Siba' bin Urfutah al-Ghifari (may Allah be pleased with him) as his deputy (in Madinah). When we arrived there, we attended the Fajr prayer with him. In the first rak'ah he recited Surah Maryam (Kaf Ha Ya 'Ayn Sad), and in the second, "Woe to those who give short measure" [Surah al-Mutaffifin: 1]. I said to myself: Woe to so-and-so, who has two measures; with one he takes in full (when receiving), and with the other he gives short (when giving). Then we went to Siba' bin Urfutah (may Allah be pleased with him) and he sent us off, and we reached the Messenger of Allah (peace and blessings be upon him) one day before or one day after the conquest of Khaybar.