U+FDFB Arabic Ligature Jallajalalouhou

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Dhikr (Arabic: ذِكْر; ; lit. 'remembrance, reminder, mention') is a form of Islamic worship in which phrases or prayers are repeatedly recited for the purpose of remembering God. It plays a central role in Sufism, and each Sufi order typically adopts a specific dhikr, accompanied by specific posture, breathing, and movement. In Sufism, dhikr refers to both the act of this remembrance as well as the prayers used in these acts of remembrance. Dhikr usually includes the names of God or supplication from the Quran or hadith. It may be counted with either one's fingers or prayer beads, and may be performed alone or with a collective group. A person who recites dhikr is called a dhākir (ذَاكِر; [ðaːkɪr]; lit. 'rememberer').

The Quran frequently refers to itself and other scriptures and prophetic messages as "reminders" (dhikrah, tadhkīrah), which is understood as a call to "remember" (dhikr) an innate knowledge of God humans already possess. The Quran uses the term dhikr to denote the reminder from God conveyed through the prophets and messengers, as well as the human response to that reminder, signifying a reciprocal interaction between the divine and human. Muslims believe the prophets deliver God's message as a reminder to humans, who, in turn, should remember and acknowledge it.