(21) باب مَا جَاءَ فِي فَضْلِ الصَّلاَةِ عَلَى النَّبِيِّ صلى الله عليه وسلم
Umar bin Al-Khattab [may Allah be pleased with him] said:
"No one should sell in our markets except one who has understanding in the religion." (ES)
Reference (ES): Jami` at-Tirmidhi 487 (ES)
In-book reference (ES): Book 3, Hadith 35 (ES)
English translation (ES): Vol. 1, Book 3, Hadith 487 (ES)