Recommended du'a and supplication for first day of holy month of Ramadan

It has been highly recommended that on the first day of the holy month of Ramadan, the following supplication narrated by infallible Imams and truthful successors of the holy prophet should be read out and recited as following:

How divine messengers receive revelation from God the Almighty?

Ramadan is an Invitation to God's Feast, Imam Khomeini highlighted

According to Imam, the holy month of Ramadan might have been prescribed, because it is a month in which the holy Prophet has perceived the truth.

Remembering God in the holy month of Ramadan.

Invitation to the feast of Allah

Remembering God in the holy month of Ramadan.

Imam Khomeini: The month of Sha`ban is the prelude to the holy month of Ramadan. It prepares the ...

Sahifeh-ye Imam, vol.13, p. 28

God Almighty has made your heart His own habitation, Imam Khomeini explained

Imam Khomeini said You and your hearts are the abodes of Divine honor. God Almighty is intolerant regarding His Dignity and honor.