Al-Nudba Supplication is one of the most famous supplications which is recommended to be recited in 4 Eids Sayyid Radi al-Din 'Ali b. Tawus has narrated it in his book Iqbal al-a'mal. Shi'a usually recite this supplication -which has been narrated from Imam al-Sadiq - on Friday mornings before the sunrise lamenting Imam al-Mahdi