Mishkat al-Masabih
She said that when the Prophet (ﷺ) prayed the two rak'as of the dawn prayer he lay down on his right side. (Bukhari and Muslim.)
وَعَنْهَا قَالَتْ: كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِذَا صَلَّى رَكْعَتَيِ الْفَجْرِ اضْطَجَعَ عَلَى شقَّه الْأَيْمن "
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