The ruling on one who prays Fajr upon waking up for work
Machine translationRead the Arabic original
Question:
Does one become a disbeliever if he prays Fajr upon waking up for work, even though he prays the other obligatory prayers in their times?
Answer:
He is in danger. The one who intentionally delays the prayer until its time has passed is in danger. First, his prayer is not valid, and his obligation is not discharged by it, because he intentionally delayed it past its time, so it is not valid. And if it is not valid, then he has not prayed. And if he has not prayed, then he is a disbeliever. This is a very serious matter. Yes.
Does one become a disbeliever if he prays Fajr upon waking up for work, even though he prays the other obligatory prayers in their times?
Answer:
He is in danger. The one who intentionally delays the prayer until its time has passed is in danger. First, his prayer is not valid, and his obligation is not discharged by it, because he intentionally delayed it past its time, so it is not valid. And if it is not valid, then he has not prayed. And if he has not prayed, then he is a disbeliever. This is a very serious matter. Yes.
Source
شرح بلوغ المرام من أدلة الأحكام [ صالح الفوزان ]، تابع باب الآنية - 2 — islamhouse.com (1:00:37)
The Arabic text is a machine transcription of the audio recording.