It has been narrated: “Seek much forgiveness from Allah in Rajab because in every hour (of the month) Allah frees people from the Fire.”
The following is a compilation of istighfar, known as Istighfar Rajab, compiled by Habib Hasan, the son of Imam Abdullah bin Alawi al-Haddad. It is traditionally recited every night in the month of Rajab.
Click here to download
Click here to listen to Habib Umar bin Hafiz reciting the Rajab Istighfar
 Narrated by al-Daylami