The Rahat al-sudur wa-ayat al-surur or Rahat al-sudur (Persian: راحة الصدور), is a history of the Great Seljuq Empire, its breakup into minor beys and the subsequent Khwarazmian occupation, written by the Persian historian Muhammad bin Ali Rawandi and finished around 1204/1205.
Written in Persian and originally dedicated to Süleymanshah II, Rawandi re-dedicated his work to the Sultan of Rum, Kaykhusraw I.
[1] According to the Rahat al-sudur, the Seljuqs held the Ghaznavids in contempt due to their slave origins.
[2] Rawandi appears to have intended the Rahat al-sudur to be a historical work, yet the book contains chapters on backgammon, chess, calligraphy, horsemanship, hunting and feasting.
[3] The final two chapters encompass the sultanate of Toghrul III, the last Seljuq beys and the Khwarazmian invasion.