the Hadith of entering markets is Da`if and its wording is: On the authority of
`Umar ibn Al-Khattab (may Allah be pleased with him) that the Messenger of Allah (peace be upon him) said:
Whoever enters a market and says: 'La Ilaha Illa Allah, Wahdahu La Sharika lah, Lah-ul-Mulku Wa Lah-ul-Hamd, Yuhyi Wa Yumit, Wa Huwa Hayyun La Yamut, Biyadihi-l-Khayr, Wa Huwa `Ala Kulli Shay'in Qadir' i.e. 'There is nothing worthy of worship except Allah, Alone without partner, to Him belongs dominion and praise, He causes life and death and He is the Living and does not die. In His Hand is all good, and He is All-Powerful over all things', Allah will write for them a million good deeds and erase a million bad deeds and raise them a million levels."
This can not be authentically reported from the Prophet (peace be upon him).
Al-Hakim in his book Al-Mustadrak
and some other Hadith compilers). However, a group of Hafizhs (scholars who are well-versed in Hadith and its sciences) like
Ibn Al-Qayyim - as narrated from him by
Al-`Ajluny in his book Kashf Al-Khafa' said that the Hadith in question is Ma`lul (a Hadith that appears to be sound, but thorough research reveals a disparaging factor in the chain of narrators or the text). This is because its Sanad (chain of narrators) contains
`Amr ibn Dinar the Mawla (freed slave) of
the family of Al-Zubayr who is a Da`if (weak) narrator. Moreover, the Matn (text) of the Hadith is unacceptable by Islamic law and Muslims of sound intellect. (Part No. 13; Page No. 14)
May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.