When entering the market1 du'a

None has the right to be worshipped but Allah alone, Who has no partner. His is the dominion and His...

Reference:At-Tirmidhi 5/291, and Al-Hakim 1/538. Al-Albani graded it good in Sahih Ibn Majah 2/21 and Sahih At-Tirmidhi 3/152.Hisnul Muslim 209

لا إلهَ إلاّ اللّه وحدَهُ لا شريكَ لهُ لهُ المُلْـكُ ولهُ الحَمْـد يُحْيـي وَيُميـتُ وَهُوَ حَيٌّ لا يَمـوت بِيَـدِهِ الْخَـيْرُ وَهوَ على كلّ شيءٍ قدير

Transliteration

Lā ilāha illallāhwaḥdahu lā sharīka lah. Lahu ‘l-mulku wa lahu ‘l-ḥamd. Yuḥyī wa yumīt. wa huwa ḥayyun lā yamūt. Biyadihi ‘l-khayr. wa huwa `alā kulli shay'in Qadīr.

Translation

None has the right to be worshipped but Allah alone, Who has no partner. His is the dominion and His is the praise. He brings life and He causes death, and He is living and does not die. In His Hand is all good, and He is Able to do all things.