Is it permissible for a Muslim to dedicate acts of worship, such as prayer, zakat, ongoing charity (sadaqah jariyah), reciting the Quran, supplication (du'a), and 'umrah, to his father who passed away in an accident last Ramadan? And does the deceased know who sends him these deeds? If the deceased owed an unknown debt, how can it be repaid? And does the deceased know who visits him in his grave?

The reward for supplication (Du'a) and charity (Sadaqa) reaches the deceased by scholarly consensus, as does the repayment of their debts, whether they left behind wealth or not. Performing 'Umra and dedicating the reward of reciting the Qur'an to the deceased are also acts of kindness towards them. As for praying on behalf of the deceased, there is a difference of opinion; the majority of scholars hold that it is not permissible, while some scholars have permitted it. Ibn al-Qayyim mentioned that the deceased recognizes those who dedicate the reward of acts of obedience to them.