Pronunciation: La i-laha 'il-lal-lahu wah-dahu la shari-ka lahu, lahul-mul-ku wa lahul-ham-du, yuh-yee wa yu-meetu, wa huwa ḥayun laa yamootu, wa Huwa ala kul-li shay'in Qadir
Meaning: None has the right to be worshipped except Allah alone having no partner, sovereignty in His and all praise is for him and He brings life and He causes death, and He is living and does not die. He has full power over everything.
Virtue: It is stated in the hadith that if a person reads the above dua in the market place, Allah writes ten lakh rewards for him and forgives ten lakh sins and raises his status by ten lakh and a house is prepared for him in Jannah.
Abu Huraira reported that the Messenger of Allah ﷺ said: The parts of land dearest to Allah are its mosques, and the parts most hateful to Allah are markets.
Reference: At-Tirmidhi 5/291, Al-Hakim 1/538, Sahih Muslim 671