If it was done unintentionally and without distorting the meaning, I hope that it is OK.

I want to ask about the situation when i tried to learn how to say the part of the prayer in which to send blessings on the prophet in the right way, then i prayed, but i forgot that i had to pronounce it differently this timei think i pronounced that part of the prayer slightly wrong. does this mean that i have to repeat the prayer?