It was narrated that `Umar said:

The Messenger of Allah (ﷺ) said: “Whoever says in a marketplace, There is no God but Allah alone, with no partner or associate, His is the dominion, to Him all praise is due, all goodness is in His hand, He grants life and death and He has power overall things,` Allah will record for him one thousand thousand good deeds and will erase from him one thousand thousand bad deeds, and will build a house for him in Paradise.`

حَدَّثَنَا أَبُو سَعِيدٍ، حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ، عَنْ عَمْرِو بْنِ دِينَارٍ، مَوْلَى آلِ الزُّبَيْرِ عَنْ سَالِمٍ، عَنْ أَبِيهِ، عَنْ عُمَرَ، رَضِيَ اللَّهُ عَنْهُ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ مَنْ قَالَ فِي سُوقٍ لَا إِلَهَ إِلَّا اللَّهُ وَحْدَهُ لَا شَرِيكَ لَهُ لَهُ الْمُلْكُ وَلَهُ الْحَمْدُ بِيَدِهِ الْخَيْرُ يُحْيِي وَيُمِيتُ وَهُوَ عَلَى كُلِّ شَيْءٍ قَدِيرٌ كَتَبَ اللَّهُ لَهُ بِهَا أَلْفَ أَلْفِ حَسَنَةٍ وَمَحَا عَنْهُ بِهَا أَلْفَ أَلْفِ سَيِّئَةٍ وَبَنَى لَهُ بَيْتًا فِي الْجَنَّةِ‏.‏