Sahifah of al-Ridha (Arabic: صَّحِيفَة ٱلرِّضَا, Ṣaḥīfah ar-Riḍā, lit. "Pages of al-Ridha"), also known as Sahifat of al-Reza and Sahifat al-Imam al-Ridha[1][2] ("Book of Imam al-Ridha"), is a collection of 240 hadiths attributed to Ali ibn Musa al-Ridha, the eighth Shia Imam.[3]