The Messenger of Allah said:
"Whoever enters the marketplace* and says:

'There is none worthy of worship except Allah who has no partners, for Him is the Dominion, and for Him is all Praise, He brings life and He causes death, and He is Alive and does not die, in His Hand is all good, and He is able to do all things'

[La ilaha ill Allah, Wahdahu la sharika lah, lahul-Mulk, wa lahul-Hamd, yuhyiy wa yumit, wa Huwa Hayyun la yamut, bi Yadih al-khayr, wa Huwa 'ala kull shay'in Qadir]**

... then Allah will write one million good deeds for him, will wipe away one million of his bad deeds, will raise him one million levels, and will build a home for him in Paradise."

['Sahih al-Jami''; # 6231]
[*] So, in our times, this would apply to shoping centres the supermarket, clothing stores, etc., and Allah Knows best.

[**] Here is the dhikr in the original Arabic:

لا إله إلا الله وحده لا شريك له له الملك و له الحمد يحيي و يميت و هو حي لا يموت بيده الخير و هو على كل شيء قدير

from Al madani's posts, may Allah bless him for he directed me to this hadith. ameen

wasalaamu aleykum wr br