It was narrated from Ibn ‘Abbas that the Prophet ﷺ said:
“Seek help by eating Suhur for fasting that day, and by taking a brief rest (at midday) for praying at night.”

حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا أَبُو عَامِرٍ، حَدَّثَنَا زَمْعَةُ بْنُ صَالِحٍ، عَنْ سَلَمَةَ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ، عَنِ النَّبِيِّ ـ ﷺ ـ قَالَ " اسْتَعِينُوا بِطَعَامِ السَّحَرِ عَلَى صِيَامِ النَّهَارِ وَبِالْقَيْلُولَةِ عَلَى قِيَامِ اللَّيْلِ " .