ENOfficial
‘Abdallah b. Mas'ud said that the Prophet (ﷺ) most commonly turned to his left after his prayer, going to his room. transmitted it in Sharh as-sunna.
Source: sunnah.com
Other translations
Arabic
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
sunnah.com