وَعَنْهَا قَالَتْ: كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: إِذَا صَلَّى رَكْعَتَيِ الْفَجْرِ اضْطَجَعَ عَلَى شقَّه الْأَيْمن
She said that when the Prophet (sallallahu alayhi wa sallam) prayed the two rakas of the dawn prayer he lay down on his right side.
Mishkat al-Masabih 1128, Book 5, Prayer, Hadith 606. 1 min read