‘Abdallah b. Mas'ud said that the Prophet (ﷺ) most commonly turned to his left after his prayer, going to his room. [Baghawi] transmitted it in <i>Sharh as-sunna</i>.

وَعَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ قَالَ: كَانَ أَكْثَرُ انْصِرَافِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ مِنْ صَلَاتِهِ إِلَى شِقِّهِ الْأَيْسَرِ إِلَى حُجْرَتِهِ. رَوَاهُ فِي شرح السّنة