Riyad as-Salihin 389
Jundub bin Abdullah (May Allah be pleased with him) reported:
Messenger of Allah (ﷺ) said, "He who performs the Fajr (dawn) prayer comes under the Protection of Allah, so beware lest Allah questions you about what you owe Him. For if He questions anyone of you and he falls short of fulfilling the duty which he owes Him, He will requite and then throw upon his face into the Hellfire". [Muslim] .
وعن جندب بن عبد الله رضي الله عنه قال‏:‏ قال رسول الله صلى الله عليه وسلم ‏:‏ من صلى صلاة الصبح، فهو في ذمة الله، فلا يطلبنكم الله من ذمته بشئ، فإنه من يطلبه من ذمته بشئ، يدركه، ثم يكبه على وجهه في نار جهنم ‏"‏ ‏(‏‏(‏رواه مسلم‏)‏‏)‏‏.‏