The Messenger of Allah (peace_be_upon_him) said: The prayer of a person who does not perform ablution is not valid, and the ablution of a person who does not mention the name of Allah (in the beginning) is not valid.
Source: HOTD
The Messenger of Allah (peace_be_upon_him) said: The prayer of a person who does not perform ablution is not valid, and the ablution of a person who does not mention the name of Allah (in the beginning) is not valid.
Source: HOTD