"Those who remember Allāh (always and in prayers), standing, sitting, and lying down on their sides; and think deeply about the creation of the heavens and the earth...." (V.3:191)

Sahih al-Bukhari · Book 65 · Hadith 4570

حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ اللَّهِ، حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ مَهْدِيٍّ، عَنْ مَالِكِ بْنِ أَنَسٍ، عَنْ مَخْرَمَةَ بْنِ سُلَيْمَانَ، عَنْ كُرَيْبٍ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ قَالَ بِتُّ عِنْدَ خَالَتِي مَيْمُونَةَ فَقُلْتُ لأَنْظُرَنَّ إِلَى صَلاَةِ رَسُولِ اللَّهِ صلى الله عليه وسلم فَطُرِحَتْ لِرَسُولِ اللَّهِ صلى الله عليه وسلم و…

Narrated Ibn `Abbas: (One night) I stayed overnight in the house of my aunt Maimuna, and said to myself, "I will watch the prayer of Allah's Messenger (ﷺ) " My aunt placed a cushion for Allah's Messenger (ﷺ) and he slep…