Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
ahmad:1911Sufyān > ʿAmr > Kuraybʿan Ibn ʿAbbās

[Machine] He said, after he performed Fajr prayer, he lay down until he blew. We used to say to 'Amr, "The Messenger of Allah ﷺ said, 'My eyes sleep, but not my heart.'"  

أحمد:١٩١١حَدَّثَنَا سُفْيَانُ عَنْ عَمْرٍو قَالَ أَخْبَرَنِي كُرَيْبٌعَنِ ابْنِ عَبَّاسٍ

أَنَّهُ قَالَ لَمَّا صَلَّى الْفَجْرَ اضْطَجَعَ حَتَّى نَفَخَ فَكُنَّا نَقُولُ لِعَمْرٍو إِنَّ رَسُولَ اللهِ ﷺ قَالَ تَنَامُ عَيْنَايَ وَلا يَنَامُ قَلْبِي