Al-Sadiq Ja`far b. Muhammad said to some of his companions:

On the eve of al-Fitr, pray the three units of Maghrib, then prostrate and say the following in your prostration: “O Everlasting, O Powerful, O Selector and Supporter of Muhammad! Bless Muhammad and the Family of Muhammad and forgive me of every sin that I have committed and forgotten that is with You in the Manifest Book (Ya thal tawl, ya thal hawl, ya mustafi Muhammad wa nasirih, salli `ala Muhammad wa aali Muhammad, waghfir li kulli dhanbin adhnabtahu wa nasaytahu wa huwa `indika fii kitabin mubin).” Then say the following one hundred times: “I repent to Allah” (atubu illallah), and do takbir after al-Maghrib, the Final `Isha’, and morning prayer, and the Eid prayer, just as you do takbir in the days of Tashriq; saying: “Allah is the Greatest, Allah is the Greatest, there is no god but Allah. Allah is the Greatest, Allah is the Greatest, and to Allah is the Praise. Allah is the Greatest over what He has guided us to, and praise be to Allah over what He has made us face (Allahu akbar, Allahu akbar, la ilaha illallah, Allahu akbar, Allahu akbar, wa lillahil hamd. Allahu akbar `ala ma hadana, walhamdulillah `ala ma ablana).” But, do not say: “Provide us with the cattle of livestock (warzuqna min bahimat al-an`am)”, for that is only for the days of Tashriq.