PROPHET MUHAMMAD (ﷺ) said:
There is no Salat (Prayer) for one who does not have Wudu (Ablution), and there is no Wudu for one who did not mention the Name of Allah over it (while starting).

TRANSLATION:
In the Name of Allah.

Ibn Wahb narrated from AdDarawardi, who mentioned that Rabi'ah explained the meaning of the Hadith of the Prophet (ﷺ) : There is no Wudu (Ablution) for one who did not mention the Name of Allah over it, -"It is (about) the one who performs Wudu or Ghusl (Bath) but he does not have the intention to perform the Wudu (performed) for Salat (Prayer) or the Ghusl (performed) for sexual impurity."