Sūra al-Sajda (Arabic: سورة السجدة) or Alif-Lām-Mīm al-Sajda (Arabic: ألـــم السجدة) or Alif-Lām-Mīm al-Tanzīl (Arabic: ألـــم تنزيل), is the thirty second sura of the Qur'an. It is a Makki sura located in the twenty first juz' thereof.

Since it is obligatory to prostrate or go to sajda upon hearing its verse fifteen, it came to be called "al-Sajda" (prostration). Themes of the sura include resurrection, the creation of the being in six periods of time, and the creation of the humans from soil. It warns deniers of resurrections about punishment, and it notes that believers will receive a reward unimaginable by any human being.

Verses sixteen and eighteen of the sura were revealed about Amir al-Mu'minin (a). About the virtues of reciting the sura, it is said that a person who recites it on eves of Fridays will receive the record of his actions with his right hand, will be forgiven, and will be a friend of Muhammad (s) and his family.