Duas to be recited on the "1st eve" of the Month of Rajab
Referring to the recommended rites at the first night of Rajab, Shaykh al-Tusi has mentioned, in his book of Misbah al-Mutahajjid, that Abu’l-Bukhtari Wahab ibn Wahab has narrated on the authority of Imam al-Sadiq (peace be upon him) on the authority of his father on the authority of his grandfather (peace be upon them all) who said that Imam `Ali (peace be upon him) used to devote himself to acts of worship in an exclusive way at four nights, (1) the first night of Rajab, (2) the middle night (i.e. fifteen) of Sha`ban, (3) the `id al-Fitr Night (i.e. the first night of Shawwal), and (4) the Nahr Night (the tenth of Dhu’l-hijjah).
It is highly advisable to bathe oneself (Ghusl) at the first night of Rajab.
In this respect, some scholars have reported the Holy Prophet (peace be upon him and his family) as saying, “Whoever receives the month of Rajab and bathes himself in the first, middle, and last of it, will be released from all of his sins to return as pure as the day of his birth.”
It is recommended to offer, after the obligatory Maghrib Prayer, a twenty unit prayer and to recite in each unit Surah al-Fatihah once and Surah al-Tawhid once.
Whoever offers this prayer, his family members, property, sons, and he will be kept saved from harm, rescued against the grave torture, and pass the Sirat as swiftly as lightning without being called to account.
After the `Isha' Prayer, it is recommended to offer a two unit prayer in the first unit of which Surah al-Fatihah should be recited once, Surah al-Inshirah (No. 94) recited once, and Surah al-Tawhid recited three times. In the second unit, Surahs al-Fatihah, al-Inshirah, al-Tawhid, al-Falaq, and al-Nas should be recited once each. After taslim, the following litany should be repeated thirty times:
لاَ إِلٰهَ إِلاَّ ٱللَّهُ
la ilaha illa allahu
There is no god save Allah.
Similarly, this imploration of blessings (Salawaat) should be repeated thirty times:
اللَّهُمَّ صَلِّ عَلَىٰ مُحَمَّدٍ وَآلِ مُحَمَّدٍ
allahumma salli `ala muhammadin wa ali muhammadin
O Allah, (please do) send blessings to Muhammad and the Household of Muhammad.
The reward of this prayer is that whoever offers it, will have all his sins forgiven and will return as sin-free as the day of his birth.
It is recommended to offer a thirty unit prayer in each unit Surah al-Fatihah is recited once, Surah al-Kafirun (No. 109) recited once, and Surah al-Tawheed repeated three times
Ibn Ashyam says: It is advisable to say this supplicatory prayer after offering the eight-unit salat al-Layl (Night Prayer) and before offering the three-unit salat al-witr. Immediately after offering this prayer, it is recommended to say this supplicatory prayer while sitting: