"O He who administers and manages the wants of the needy; (who) is aware of that which is hidden in the heart of the silent sufferers, every problem receives Thy attention and is settled well. O Allah Thy promises come true. Thy favours are many, Thy Mercy is extensive, Therefore I beseech Thee to send blessings on Muhammad and on the children of Muhammad, and fulfil my desires in this world and in the world to come, verily Thou art able to do all things."

Also a prayer quoted from Imam al-Sadiq (a) is recommended:

خَابَ الْوَافِدُونَ عَلَی غَیرِک وَ خَسِرَ الْمُتَعَرِّضُونَ إِلا لَک وَ ضَاعَ الْمُلِمُّونَ إِلا بِک وَ أَجْدَبَ الْمُنْتَجِعُونَ إِلا مَنِ انْتَجَعَ فَضْلَک بَابُک مَفْتُوحٌ لِلرَّاغِبِینَ وَ خَیرُک مَبْذُولٌ لِلطَّالِبِینَ وَ فَضْلُک مُبَاحٌ لِلسَّائِلِینَ وَ نَیلُک مُتَاحٌ لِلْآمِلِینَ وَ رِزْقُک مَبْسُوطٌ لِمَنْ عَصَاک وَ حِلْمُک مُعْتَرِضٌ لِمَنْ نَاوَاک عَادَتُک الْإِحْسَانُ إِلَی الْمُسِیئِینَ وَ سَبِیلُک الْإِبْقَاءُ عَلَی الْمُعْتَدِینَ اللَّهُمَّ فَاهْدِنِی هُدَی الْمُهْتَدِینَ وَ ارْزُقْنِی اجْتِهَادَ الْمُجْتَهِدِینَ وَلا تَجْعَلْنِی مِنَ الْغَافِلِینَ الْمُبْعَدِینَ وَ اغْفِرْ لِی یوْمَ الدِّینِ.

"Run to a dead end the hoodwinked passengers who looked for other than Thee, Lost their way, lured and swindled, those who hanged onto and held fast anything that offers itself, not linked with Thee, cried in anguish, frightened and agitated, those who stayed and took shelter anywhere other than Thee, went waste efforts of those who tried to profit from that which they came across instead of having the wholesome benefits from Thee. Thy door is wide open for those who call humbly and fervently on Thee, Success, high – mindedness, and piety are freely available to those who pray and request Thee, Thy favours are common and open to all when besought submissively, They gifts come in long strides when asked for by the hopeful supplicants, tears in their eyes, the daily bread (from Thee) is openly spread out for one and all, even the transgressors, Thy indulgence reach out (even) to those who keep themselves far from Thee, Thy usual disposition is to do favour (even) to those who stir up mischief, Thy system looks after and keeps alive (even) those who are hostile to Thee. O Allah, therefore, keep me on the path of those who are rightly guided, give me courage to strive like those who exert themselves fully in Thy way, and do not let me be among the negligent who have gone far in their forgetfulness, forgive me on the Day of Judgement."

There is a hadith from Imam al-Sadiq (a) recommending the following supplication:

اَللَّهُمَّ إِنِّی أَسْأَلُک صَبْرَ الشَّاکرِینَ لَک وَ عَمَلَ الْخَائِفِینَ مِنْک وَ یقِینَ الْعَابِدِینَ لَک اللَّهُمَّ أَنْتَ الْعَلِی الْعَظِیمُ وَ أَنَا عَبْدُک الْبَائِسُ الْفَقِیرُ أَنْتَ الْغَنِی الْحَمِیدُ وَ أَنَا الْعَبْدُ الذَّلِیلُ اللَّهُمَّ صَلِّ عَلَی مُحَمَّدٍ وَ آلِهِ وَ امْنُنْ بِغِنَاک عَلَی فَقْرِی وَ بِحِلْمِک عَلَی جَهْلِی وَ بِقُوَّتِک عَلَی ضَعْفِی یا قَوِی یا عَزِیزُ اللَّهُمَّ صَلِّ عَلَی مُحَمَّدٍ وَ آلِهِ الْأَوْصِیاءِ الْمَرْضِیینَ وَ اکفِنِی مَا أَهَمَّنِی مِنْ أَمْرِ الدُّنْیا وَ الْآخِرَةِ یا أَرْحَمَ الرَّاحِمِینَ.

"O Allah I ask Thee for the poise and composure of the thankful, for the disposition of the cautious in awe of Thy reverence, for the sure certain dedication of the adorers. O Allah Thou art the Highest Almighty, and I am Thy bondman, a poor miserable needy, Thou art the praiseworthy who has enough and is above needs, and I am insignificant indistinct dependent, O Allah send blessings on Muhammad and on the children of Muhammad, show favour to and bestow benefits on me, on account of Thy infinite sufficiency in my distress; on account of Thy indulgence in my ignorance; on account of Thy might in my weakness, O Mighty! O Almighty! O Allah send blessings on Muhammad and on his descendants, the approved praiseworthy successors, and free me from that which breaks my heart and turns me Gray with worry in worldly matters and about my fate on the Day of Judgement, O the Most Merciful!"

After the morning and nightly (maghrib and 'Isha') prayers,

يا مَنْ اَرْجُوهُ لِكُلِّ خَيْرٍ، وَ آمَنُ سَخَطَهُ عِنْدَ كُلِّ شَرٍّ، يا مَنْ يُعْطِى الْكَثيرَ بِالْقَليلِ، يا مَنْ يُعْطى‏ مَنْ سَئَلَهُ، يا مَنْ يُعْطى‏ مَنْ لَمْ يَسْئَلْهُ وَ مَنْ لَمْ يَعْرِفْهُ‏ تَحَنُّناً مِنْهُ وَ رَحْمَةً، اَعْطِنى‏ بِمَسْئَلَتى‏ اِيَّاكَ، جَميعَ خَيْرِ الدُّنْيا وَ جَميعَ خَيْرِ الْأخِرَةِ، وَ اصْرِفْ عَنّى‏ بِمَسْئَلَتى‏ اِيّاكَ جَميعَ شَرِّ الدُّنْيا، وَ شَرِّ الْأخِرَةِ، فَاِنَّهُ‏ غَيْرُ مَنْقُوصٍ مااَعْطَيْتَ، وَ زِدْنى‏ مِنْ فَضْلِكَ يا كَريمُ ياذَا الْجَلالِ ‏وَ الْاِكْرامِ، يا ذَاالنَّعْمآءِ وَ الْجُودِ، يا ذَا الْمَنِّ وَ الطَّوْلِ، حَرِّمْ شَيْبَتى‏ عَلَى النَّارِ

O he from whom I ask for and expect fulfillment in every good (I do); and in whom I confide to seek safety from His displeasure for every evil I do! O He who gives much in return of very little (good deeds)! O He who puts into the hands of the supplicant what he asks for, O He who (also) let needy, who does not ask for, have what he needs, though he remembers Him not, Feels compassion, and takes pity on them! Give me as a gift good in all my objectives in this world and in the Hereafter, let me free myself from evil in all my activities in this world and in the Hereafter, because, surely, what Thou gives never goes waste or grows less, and from Thy bounties let me have more and more O the Generous Compassionate.

According to a hadith from the Prophet (s), "if a person recites "أَسْتَغْفِرُ اللَّهَ الَّذِی لا إِلَهَ إِلا هُوَ وَحْدَهُ لا شَرِیک لَهُ وَ أَتُوبُ إِلَیهِ" (I ask forgiveness of Allah, who there is no god save He and no other; has no partner; and I turn repentant to Him) a hundred times in Rajab and then pays for a charity, God will bless him with His mercy, and if a person recites it four hundred times, God will reward him like a martyr.

There is a hadith from the Prophet (s) saying that: if a person recites "لا إِلَهَ إِلا اللهُ" (there's no god except Allah) a thousand times in the Rajab month, God will give him or her 100,000 rewards and builds 100 towns for him or her in the Heaven.

There is a hadith according to which one should recite "أَسْتَغْفِرُ اللهَ وَ أَتُوبُ إِلَیهِ" (I ask forgiveness of Allah, and I turn repentant to Him), 70 times in the morning and 70 times at night, and one should after that, raise his or her hands to the sky and recite: "اللَّهُمَّ اغْفِرْ لِی وَ تُبْ عَلَی". If this person dies in the Rajab month, God will be satisfied with him or her, and because of the Rajab month, he or she will not be touched by the Hell.

Reciting "أَسْتَغْفِرُ اللهَ ذَا الْجَلالِ وَ الْإِکرَامِ مِنْ جَمِیعِ الذُّنُوبِ وَ الْآثَامِ" a thousand times during this month.

Fasting three days in this month, especially on Thursday, Friday and Saturday.

According to a hadith from the Prophet (s): God will forgive the sins of the person who says 10 rak'as of prayers in one of the Rajab's nights, reciting in each rak'a Sura al-Hamd and Sura al-Kafirun once, and Sura al-Ikhlasthree times.