(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." (RU)
Reference (RU): Jami` at-Tirmidhi 487 (RU)
In-book reference (RU): Book 3, Hadith 35 (RU)
English translation (RU): Vol. 1, Book 3, Hadith 487 (RU)