The Messenger of Allah ﷺ said, "Whoever enters the marketplace and says, 'There is no god but Allah, alone, with no partner. To Him belongs the dominion and to Him belongs all praise. He gives life and causes death, and He is ever-living and never dies. In His hand is all good, and He is capable of all things,' Allah will record for him a million good deeds, erase from him a million bad deeds, and build for him a house in Paradise."
حدثنا بشر بن معاذ الضرير حدثنا حماد بن زيد عن عمرو بن دينار مولى آل الزبير
قال رسول الله ﷺ من قال حين يدخل السوق لا إله إلا الله وحده لا شريك له له الملك وله الحمد يحيي ويميت وهو حي لا يموت بيده الخير كله وهو على كل شيء قدير كتب الله له ألف ألف حسنة ومحا عنه ألف ألف سيئة وبنى له بيتا في الجنة
[Its chain is daif] Tirmidhi transmitted it, Duaa, chapter on what one says when entering the marketplace, no: 3429, from the hadith of Hammad by this route. Amr is daif, as stated in Taqrib. There is another route for it in Tirmidhi, no: 3428, containing Azhar bin Sinan, who is daif (Taqrib). The hadith has daif corroborating narrations in Hakim, 1/538, 539, and Ibn Sunni and others.