In the name of Allah, the most Beneficent, the most Merciful.
Isale Thawab (the conveying of an act of virtue to someone) is permissible regardless of whatever deed it may be, whether it is Salah, Fast, Hajj, Tawaf, Umrah etc… The scholars have also said that one should convey the reward for the entire Muslim ummah, male and female because it reaches them and the doer’s reward is not decreased at all. (Raddul Muhtar p.10 v.4)
Allah (SWA) in the Holy Quran has said:
“O’ Allah! Forgive us and forgive our Muslim brothers and sisters who have passed away.” (Surah Hashr v.10)
Once a man came to the Prophet of Allah Sallallahu Alahi Wasalam and said; “My mother has suddenly died and did not leave any will but I suspect if she did that then she would have told me to give something to charity. Now if I offer something in charity on her behalf, will she get the reward? The Prophet of Allah Sallallahu Alahi Wasalam replied: “yes”, then the man said that “I make you (the Prophet) as my witness that I offer my garden full of fruits to charity.” (Sahih Bukhari p.386 v.1)
To recite any portion from the Holy Quran and to pass the rewards to the deceased is something permissible and allowed in Islam.
Regarding your question of a Quran Khatm, as long as the following three conditions are found it will be considered permissible:
- The intention should be for the sake of Allah.
- The Quran is recited properly with its correct pronunciation.
- The reciters should not take any money for it. (Nizamul Fatawa p.151 v.1)
However, there is no basis of doing a Quran Khatm every year or every 3 or 40 days in Islam.
Only Allah Knows Best
Mohammed Tosir Miah
Darul Ifta Birmingham.