Salat al-Tasbih (The Prayer of Glorification)

Salat al-Tasbih is a special voluntary prayer in which one recites the formula "Subhan Allah, wal-hamdu lillah, wa la ilaha illa Allah, wallahu Akbar" (Glorified be Allah, all praise is due to Allah, there is no god except Allah, Allah is the Greatest) a total of 300 times distributed over four rak'ah.

It is based on a hadith in which the Prophet (peace be upon him) said to his uncle al-Abbas: "Shall I not give you something? Shall I not bestow something upon you? ... If you do this, Allah will forgive your sins — the first and the last, the old and the new, the unintentional and the deliberate, the small and the great, the hidden and the open" (Sunan Abu Dawud).

There is disagreement among Sunni scholars about this hadith's authenticity. Imam Abu Hanifah and Imam al-Nawawi recommended this prayer, while other scholars such as Ibn al-Jawzi doubted the hadith. Imam Ibn Taymiyyah rejected it, but Imam al-Suyuti defended its authenticity. Most scholars agree that it is permissible to pray it as a voluntary prayer.