Salwaat Zarrab Isfahani
This salwat is ascribed to Abu’l-Hasan al-Zarrab al-Isfahani. Shaykh al-Tusi and Sayyid Ibn Tawus have included this famous invocation with the recommended rites of Friday afternoons. Confirming its significance and writing down the series of its reporters, Sayyid Ibn Tawus adds, “This invocation is reported from our master Imam al-Mahdi, peace be upon him." As for Shaykh al-Tusi, he says, “This invocation is reported from the Patron of the Age, Imam al-Mahdi, peace be upon him. It was shown to Abu’l-Hasan al-Zarrab in Makkah