The ruling on one who remembers the invocation during ablution

Question:
May Allah reward you with good and do you good. Also, our sister asks: What is the ruling on one who performed ablution and did not mention the name of Allah the Exalted before the ablution in his heart, but when he was washing his hands, for example, or his feet, he remembered the invocation? Does he have to repeat the ablution? Or if he remembers the invocation, is it permissible for him to say "In the name of Allah" at the beginning and the end? And if he has to repeat the ablution, what is the ruling on his previous ablution and his previous prayers? Knowing that we know the saying of the Messenger (peace and blessings be upon him) , please inform us, may Allah reward you with good?

Answer:
The invocation at the beginning of ablution is prescribed; it is either recommended according to the majority of the scholars, or obligatory as is the school of Imam Ahmad (may Allah have mercy on him). So it is prescribed in every case. If he remembers it during the ablution, he restarts: he invokes the name of Allah and restarts the ablution anew, based on his saying (peace and blessings be upon him) . So he invokes the name and restarts the ablution anew. Some scholars hold that he invokes the name and completes his ablution, but the first opinion is more cautious, and praise be to Allah. It is not sufficient for a person to invoke the name in his heart; the one who speaks must speak the invocation, saying "In the name of Allah." Yes.