ENOfficial
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.)
Source: sunnah.com
Other translations
Arabic
وَعَنْهَا قَالَتْ: كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِذَا صَلَّى رَكْعَتَيِ الْفَجْرِ اضْطَجَعَ عَلَى شقَّه الْأَيْمن "
sunnah.com