The Dislike of Sleeping After the Fajr Prayer
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 78
وَقَالَ اَلرِّضَا عَلَيْهِ اَلسَّلاَمُ: فِي قَوْلِ اَللَّهِ عَزَّ وَ جَلَّ: «فَالْمُقَسِّمٰاتِ أَمْراً» قَالَ «اَلْمَلاَئِكَةُ تُقَسِّمُ أَرْزَاقَ بَنِي آدَمَ مَا بَيْنَ طُلُوعِ اَلْفَجْرِ إِلَى طُلُوعِ اَلشَّمْسِ فَمَنْ يَنَامُ فِيمَا بَيْنَهُمَا يَنَامُ عَنْ رِزْقِهِ.
Imam al-Ridha عليه السلام said regarding the verse of Allah سبحانه وتعالى, the Exalted: "By those who distribute commands" He (Imam عليه السلام) explained: "The angels distribute the sustenance of the children of Adam from the time of dawn until sunrise. Therefore, whoever sleeps during this period sleeps away their sustenance."
- Ṣaḥīḥ al-Faqīh