I add: the chain contains Kathir ibn Abd Allah al-Muzani, whom the majority of hadith critics regard as very weak; hence al-Dhahabi labelled him "waah" (feeble). The report is also transmitted from Abu Hurayrah and was recorded by Abu Dawud (no. 3594), al-Darqutni (3/27), al-Hakim (2/49, no. 2309), Ibn Hibban (no. 5091), Ibn al-Jarud (no. 637), and others. Ibn Hibban and Ibn al-Jarud classed the hadith as sahih, al-Hakim remained silent, while Ibn Adi listed it among the rejected narrations of Kathir ibn Zayd al-Madani (al-Kamil, 6/68). Al-Bukhari also cited it in his Sahih with decisive wording in Book 42, "Hiring," Chapter 14, "Brokerage Fees" (2/794). A mursal version from Ata ibn Abi Rabah is found in Ibn Abi Shaybah (4/453). Ibn Hajar states: "A mursal with a strong chain, supported by the preceding report." See Taghliq al-taʿliq 3/282. Consult Irwa al-ghalil 5/142-146 and Ibn Hajar’s Taghliq al-taʿliq 3/281-282. Note: the phrase "a sahih hadith" is absent from manuscript Mat. (1) Reported by al-Bukhari (no. 6859) and Muslim (no. 2358); the wording here follows Muslim, from the hadith of Saʿd ibn Abi Waqqas. Note: the expression "among the Muslims" is likewise missing from manuscript Mat.