Sunan Abi Dawud Wages (Kitab Al-Ijarah) Abu Hurairah al-Rabi' bin Nafi' Abu Tawba al-Halbi الربيع بن نافع أبو توبة الحلبي Ayoub al-Sakhtiyani أيوب السختياني Ibn Sirin محمد بن سيرين الأنصاري Ubaidullah bin 'Amr bin Abi Walid عبيد الله بن عمرو بن أبي الوليد Sahih The Messenger of Allah (ﷺ) as saying: None of you must buy in opposition to one another ; and do not go out to meet the merchandise, (but one must wait) till it is brought down to the market. https://parallelquran.com/hadith/sunan-abi-dawud-3436/