It wasnarrated from Ibn 'Abbas that the Prophet (ﷺ) said:
"Seekhelpby eating Suhur for fasting that day, and by taking a brief rest(atmidday) for praying at night." (RU)
English reference (RU): Vol. 1, Book 7, Hadith 1693 (RU)
Arabic reference (RU): Book 7, Hadith 1763 (RU)