General
To fast for 4 days is beneficial to save oneself from punishment in the grave.
Whoever fasts for six days in Rajab will find peace in Qiyamat & walk over the Pul-e-siraat easily without accounting.

Night of 1st Rajab
Recite 20 rakat namaaz on the night of 1st Rajab after Maghrib namaaz such that in every Rakat after Surah al- Hamd recite Surah Tawheed once. The reciter & his family will be saved from punishment in the grave & will cross Pul-e-siraat like lightening without any accounting.

1st of Rajab
Recite 10 Rakat Namaaz on the 1st of Rajab such that in every Rakat after Surah al Hamd, recite Surah Tawheed 3 times. A person who prays this Namaaz will be saved from the squeeze of the grave.

Lailatul Raghaib & first Thursday of Rajab
It is related that the person who recites Surah-al Yaseen before going to bed & Namaaz -e -Lailatul Raghaib will be saved from the terror of the grave. The first Friday night of Rajab is known as Lailatul Raghaib. Hazrat Muhammad (saws) used to fast on the first Thursday & between Maghrib & Isha recite 12 Rak’at namaz in six sets of 2 units. In every Rak’at after surah al Hamd recite 3 times Surah al-Qadr & 12 times Surah an Naas. After salam recite 70 times: Allahumma s’ale a’laa muh’ammadin nabiyyil ummi wa a’laa aaleh.
Then go into sajdah & recite70 times: subbuh’un quddoos rabbul malaaaekate war-rooh’
Then sit erect & say 70 times: rabbighfir war-ham watajaawaz a’mma ta’lamo innaka antal a’liyyul a’zeem.
Then go into sajdah & say 70 times: subbooh’un quddoos rabbul malaaekate war-rooh’.

Night of 7th Rajab
The Holy prophet (saws) says that if a person recites 4 unit namaaz on the night of 7th rajab, (such that in each unit after Surah al Hamd recites Surat at Tawheed thrice, Surah alFalaq once, Surah an Naas once. After finishing namaaz recites Salwaat &10 times Tasbeehate Arba’).
Allah will offer him shelter under the Arsh, & give him reward of a person fasting in the month of ramdhan. Till the time he finishes the prayers, the angels pray for his forgiveness. Allah will ease the pangs of death on him & save him from the squeeze in the grave. He will not die unless he sees his place in Paradise, & will be safe from the hardships of Qiyamat.

Middle of month of Rajab & the night of 16th&17th Rajab
To recite 30 rakat namaaz in the middle part of the month such that in each rakat after Surah alHamd recite Sura Tawheed 10 times is beneficial to save oneself from punishment in the grave. In the same manner to recite the above naamaz on the night of 16th &17th Rajab is also beneficial

22nd Rajab
To recite the following 8 Rak’at namaaz on the 22nd of Rajab is beneficial during death. In each Rakat after al-Hamd , recite Surah Tawheed 7 times. After finishing Namaaz, recite sawaat 10 times & recite Astaghfirullah Rabbi wa atooboIlayh 10 times.

24th of Rajab
Fasting on the 24th of Rajab carries great reward. One of its merits is that the angel of death comes in the form of a handsome youth carrying a bowl of the pure drink(Sharaabe Tahoora) & offers it to the dying man. The dying person drinks it & dies in peace.

Last day of Rajab.
For the person who fasts on the last day of Rajab, Allah will save him from the after effects of death.