Hadith 270

Bulugh al-Maram

Book 2: The Book of Prayer
وَعَنْ أَبِي هُرَيْرَةَ ‏- رضى الله عنه ‏- قَالَ : قَالَ رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-{ إِذَا صَلَّى أَحَدُكُمْ اَلرَّكْعَتَيْنِ قَبْلَ صَلَاةِ اَلصُّبْحِ , فَلْيَضْطَجِعْ عَلَى جَنْبِهِ اَلْأَيْمَنِ } رَوَاهُ أَحْمَدُ , وَأَبُو دَاوُدَ , وَاَلتِّرْمِذِيُّ وَصَحَّحَهُ .‏ 1‏
Abu Hurairah (RA):

Allah's Messenger (ﷺ) said: "If any of you prays the two Rak'at before the dawn prayer, he should lie on his right side." [Reported by Ahmad, Abu Dawud and at-Tirmidhi, the latter graded it Sahih (authentic)].