The majority’s evidence is the report established in the Sahīh:

“The Prophet—may Allah bless him and grant him peace—Abū Bakr and ‘Umar did not recite ‘In the name of Allah, the Most Merciful, the Especially Merciful’ aloud.” Another wording states: “They did not mention ‘In the name of Allah, the Most Merciful, the Especially Merciful’ at the beginning or end of their recitation.”

And Allah knows best.

He was asked:

“Is the prayer of someone who makes errors when reciting al-Fātihah valid?”

He answered:

If an error in reciting al-Fātihah does not change the meaning, the prayer of the person making it is valid, whether he is leading the prayer or praying alone. Examples include saying “rabbi l-‘ālamīn” (Lord of all worlds), “wa-l-dāllīn” (and those who have gone astray), and the like.

As for forms transmitted as Quranic readings, such as “al-hamdu lillāhi rabba,” “rabbi,” and “rabbu” (praise belongs to Allah, Lord…); or “al-hamdu lillāh” and “al-hamdi lillāh” (praise belongs to Allah), with the letter dāl pronounced with u or i; or “‘alayhimu,” “‘alayhim,” and “‘alayhumu” (upon them), and similar examples—these are not considered errors.

As for an error that changes the meaning, if the person making it understands its meaning—for example, saying “sirāt alladhīna an‘amta ‘alayhim” (the path of those whom You have blessed), knowing that this is a first-person pronoun—his prayer is invalid. If, however, he does not know that it changes the meaning and believes it to be a second-person pronoun, there is disagreement concerning his prayer’s validity. And Allah knows best.