These supplications are innovated and were not reported from the Prophet (peace be upon him). Allah (Exalted be He) commanded us to invoke peace and blessings on the Prophet (peace be upon him) in His Statement:
Allâh sends His Salât (Graces, Honours, Blessings, Mercy) on the Prophet (Muhammad صلى الله عليه وسلم), and also His angels (ask Allâh to bless and forgive him). O you who believe! Send your Salât on (ask Allâh to bless) him (Muhammad صلى الله عليه وسلم), and (you should) greet (salute) him with the Islâmic way of greeting (salutation i.e. As-Salâmu ‘Alaikum ).
The Prophet (peace be upon him) explained how to invoke peace and blessings on him in the authentic Hadiths. It is a Sunnah to act according to them and avoid Bid`ah (innovation in religion) which people introduce. We advise that you read the book of (Part No. 2; Page No. 240) "Jala' Al-Afham Fi Al-Salah wa Al-Salam `Ala Khayr Al-Anam" by
Ibn Al-Qayyim (may Allah be merciful to him) where he elaborated on this topic.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.