Riyad as-SalihinChapter 8Hadith 393
Full Sharh — Riyad as-Salihin 393
وعن أبي هريرة رضي الله عنه أن رسول الله صلى الله عليه وسلم قال: "ولو يعلمون ما في العتمة والصبح لأتوهما ولو حبوًا" ((متفق عليه)). وقد سبق بطوله.
English Translation
Abu Hurairah (May Allah be pleased with him)reported:: The Messenger of Allah (ﷺ) said, "If they knew the merits of Salat after nightfall ('Isha') and the morning (Fajr) Salat, they would come to them even if they had to crawl to do so."This is part of a long Hadith which has already been mentioned. See Hadith No. 1033.
Source
Riyad as-Salihin(رياض الصالحين)
The Book of Virtues
Hadith Number
393