As-Salaam alaikum,

Abdullah Ibn Amr, may Allah be pleased with him, says that one day the Noble Prophet, Sallallahu alaihi Wasallam, 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 Abi bin Khalaf." (Ahmad, Darimi, Baihaqi).