If someone loses something and says:
Verily, (Allâh) is Able to bring him back (to life)!
200 times, will what was lost be returned
This is not confirmed in the Book of Allah or the Sahih (authentic) Sunnah of the Prophet (peace be upon him) and it is not an ordinary reason for lost items to be returned; instead it is using the Qur'an for something other than what was revealed for. Doing this involves limiting the recitation to a certain number of times, which is a Tawqifiy (bound by a religious text and not amenable to personal opinion) matter that cannot be determined by the mind. Therefore, this is Bid`ah (a rejected innovation in religion). It is authentically reported that the Prophet (peace be upon him) said,
"Anyone who introduces something in this matter of ours (the religion) that is not from it, it will be rejected."
May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.