No Praying out of Laziness
The scholars have differed concerning the one who misses salaah because he is lazy, although still believes that salaah is obligatory.
Imaam Maalik and Imaam Ash-Shaafi’ee (and the majority of earlier and later scholars) were of the opinion that he is not a disbeliever, rather he an evil doer who should repent. If he does not repent then the hadd punishment should be carried out on him with the sword.
‘Abdullaah Ibn Al-Mubaarak, Ishaaq Ibn Raahawayh, some of the followers of Ash-Shaafi’ee, as well as what has been reported from ‘Alee Ibn Abe taalib and one of the two reports from Imaam Ahmad, and likewise a number of earlier generations were of the view that such a person is a disbeliever.
Imaam Aboo Haneefah and a number of the people of Koofah as well as Al-Muzani (the companion of Ash-Shaafi’ee) were of the view that he was not a disbeliever and is not to be executed, rather he should be given a disciplinary punishment and imprisoned until he does pray.
[Refer to Sharh Saheeh Muslim, 2/70 and Al-Mughnee, 2/442-447 for more info]