As-Salaam alaikum,
Abdullah Ibn Amr, may Allah be pleased with him, says that one day, the Prophet, Sallallahu alaihi Wasalla, was talking about prescribed Prayers and he said:--

"Whoso is regular in his prayers it will illumine his face, testify to the firmness of his faith and be the cause of
his salvation on the Day of Judgement. And whoso neglects the prayers will neither acquire any glow nor
staunchness of faith nor any means of salvation and he will join, on the Day of Resurrection, the company of
Korah (Qarun), Pharaoh, Haman and Ubay bin Khalaf." [Ahmad, Darimi, Baihaqi].