1.Imam Ja`far al-Sadiq (as) has reported the Holy Prophet (saws) as saying: Rajab is the month of imploring for forgiveness for my people; so, you should implore forgiveness repeatedly in this month much more than you do in other months, for Almighty Allah is forgiving and merciful. This month is described as the advantageous month, because mercy is poured on my people during it so heavily. You should thus repeat very much the following imploration prayer
أَسْتَغْفِرُ اللّه وَأَسْأَلُهُ التّوْبَة
astaghfiru allaha wa as'aluhu alttawbata
I ask Allah for forgiveness and I pray Him to accept my repentance.
2.It is recommended to fast on three days in the month of Rajab: Thursday, Friday, and Saturday. It has been narrated that one who fasts on these three days in one of the Sacred Months will be awarded with the reward of nine hundred year worship.
Fasting ettiquette /Rewards Iqbal - pdf
3.If one is incapable of fasting during the month recite the following instead 100 times each day in the month of Rajab:
سُبْحَانَ الإِلٰهِ ٱلْجَلِيلِ
subhana al-ilahi aljalili
Glory be to the All-majestic God.
سُبْحَانَ مَنْ لا يَنْبَغِي ٱلتَّسْبِيحُ إِلاَّ لَهُ
subhana man la yanbaghi alttasbihu illa lahu
Glory be to Him other than Whom none should be glorified.
سُبْحَانَ ٱلاعَزِّ ٱلاكْرَمِ
subhana al-a`azzi al-akrami
Glory be to the All-honorable and All-dignified.
سُبْحَانَ مَنْ لَبِسَ ٱلْعِزَّ وَهُوَ لَهُ اهْلٌ
subhana man labisa al`izza wa huwa lahu ahlun
Glory be to Him Who has dressed Himself with grandeur that fits none but Him.
4.The Holy Prophet (saws) is reported as saying: Whoever repeats the following imploration for forgiveness 100 times in Rajab and immediately gives alms after it, Almighty Allah will conclude his life with mercy and forgiveness. Also, whoever repeats it 400 times, will be given the reward of one hundred martyrs:
اسْتَغْفِرُ ٱللَّهَ ٱلَّذِي لاَ إِلٰهَ إِلاَّ هُوَ
Astaghfirullaha alladhy la ilaha illa huwa
I implore the forgiveness of Allah. There is no god save Him,
وَحْدَهُ لا شَرِيكَ لَهُ
the One and Only Who has no partner,
wa atubu ilayhi.
and I repent before Him.
5.The Holy Prophet (saws) is also reported to have said: Whoever repeats this litany 1000 times in Rajab, Almighty Allah will decide for him 100,000 rewards and award him 100 houses in Paradise:
لاَ إِلٰهَ إِلاَّ ٱللَّهُ
La ilaha illa allah
There is no god save Allah.
6.A Hadith reads that whoever repeats the following imploration for forgiveness 70 times in the morning and 70 times in the evening on each day in Rajab, will be admitted by Almighty Allah if he dies in Rajab and Hellfire will not touch him on account of the blessings of Rajab:
اسْتَغْفِرُ ٱللَّهَ وَاتُوبُ إِلَيْهِ
Astaghfirullaha wa atubu ilayhi
I implore the forgiveness of Allah and I repent to Him.
After this repeat seventy times, raise the hands towards the sky and say:
اَللَّهُمَّ ٱغْفِرْ لِي وَتُبْ عَلَيَّ
allahuma aghfir li wa tub'alayya
O Allah, (please do) forgive me and accept my repentance.
7.It is recommended to implore Almighty Allah for forgiveness in the following form one thousand times in Rajab so that He will forgive:
اسْتَغْفِرُ ٱللَّهَ ذَاَ ٱلْجَلاَلِ وَٱلإِكْرَامِ
Astaghfiru allaha dhaljalali wal ikrami
I implore Allah, the Lord of majesty and honor,
مِنْ جَمِيعِ ٱلذُّنُوبِ وَٱلآثَامِ
min jami i aldhunubi wa ithmi
to forgive my all sins and offenses.
(8) Repeat the foll 3 times (i to x) each morning & evening for forgiveness
i) Sura Fatihah , ii) Ayatul Kursi , iii) Sura Kafirun , iv) Sura Tawhid , v) Sura Falaq , vi) Sura Naas
سُبْحَانَ اللّهِ،وَالْحَمْدُ لِلّهِ،وَلا إلهَ إلاّ اللّهُ،وَاللّهُ أَكْبَرُ،وَلا حَوْلَ وَلا قُوَّةَ إلاّ بِاللّهِ الْعَلِيِّ الْعَظِيمِ.
vii) Say'Subhanallahi walhumdulillahi wa la illa ha illa allahu wallahu akbar wa la hawla wala quwata illa billahi al'aliyul azimi
All glory be to Allah; all praise be to Allah;there is no god save Allah; Allah is the Greatest; and there is no might and no strength save with Allah, the All-high the All-great.
اللّهُمَّ صَلِّ عَلَى مُحَمَّدٍ وَآلِ مُحَمَّدٍ
viii)Allhumma salli al muhammadin wa aali muhammadin
اَللَّهُمَّ اغْفِرْ لِلْمُؤْمِنِينَ وَالمُؤْمِنَاتِ.
ix)'Allahumma ghfirlil muminina wal muminati Allah please forgive the believing men & women
أَسْتَغْفِرُ اللّهَ وَأَتُوبُ إلَيْهِ
x) Astaghfirulaha wa atubuali
9.It has been narrated that the Holy Prophet (saws) said, “One who recites Surah al-Tawheed 100 times at one night in Rajab will be decided to have fasted for one hundred years for the sake of Almighty Allah Who will also decide for him one hundred palaces (in Paradise) in the vicinity of one of the Prophets.”
The Prayer for Fridays in Rajab -Iqbal Aamal
One who recites Surah Tawheed 100 times on Fridays in Rajab will enjoy, on the Resurrection Day, light that draws him towards Paradise.
The following is found through a chain of documents on the authority of Abdullah ibn Abbas, on the authority of God‟s Prophet (saws):
“Recite four units of prayers between the Zuhr noon and Asr-afternoon prayers on a Friday during the month of Rajab
and in each unit of the prayer he recites the Sura Fatiha once, the Ayat al-Kursi seven times, “Sura Ikhlas" five times, and
then say the following ten times,
اسْتَغْفِرُ ٱللَّهَ وَاسْالُهُ ٱلتَّوْبَةَ
astaghfiru allaha wa as'aluhu alttawbata
I implore for Allah’s forgiveness and I pray to Him for accepting of my repentance.
The rewards mentioned are ;the Blessed and the Sublime God would record one-thousand good deeds for each day of his life from the day on which he prays until his death.
Moreover, God the Sublime would grant him a town made of red rubies in Paradise for each verse that he recites. For each verse that he recites God the Sublime rewards him a town in Paradise made of red rubies, and for each word he utters God would grant him a palace made of white pearls in Paradise
And the Sublime God would join him in wedlock with the green-eyed Houris. God would be pleased with him such that He would never become angry at him. God would record him amongst the worshippers. God the Sublime would make him have a prosperous ending with being forgiven.
God would record fifty-thousand units of prayers for each unit of his prayer and would crown him with a thousand crowns and would house him in Paradise along with the truthful ones!
God will not take him out of this world until he sees his place in Paradise.”