Hadhrat Abu Hurairah (Radhiyallahu anhu) narrated that Rasulullah (Sallallahu alayhi wasallam) said:
“He who did not perform Fajr Salaat, will have no barkat in his rizq. There will be no noor in the heart of a person who did not perform Zuhr Salaat. There will be no strength in the limbs of the one who did not perform Asr. The food of one who did not perform Maghrib Salaat is devoid of taste. The one who did not perform Ishaa’ is not a Mu’min neither in this world nor in the Aakhirah.”
“He who misses one Salaat is like one who is slaughtered without a knife. He who misses two Salaat is like one who is far from the Rahmat of Allah (he is mardood). He who misses three Salaat, is like one who causes distress to the heart of Nabi (Sallallahu alayhi wasallam). He who misses four Salaat is like one who has rejected the entire Kitaab revealed by Allah. He who misses five Salaat, is addressed by a Allah Who proclaims wrathfully:

“Listen, O sinner! I am free of you, and you are free of Me. Get out from the heavens and the earth, and search for a being besides Me.” Thus, this person departs at the time of his death without Taubah.