What is the ruling on voluntary fasting, performing missed prayers, giving charity, performing 'Umrah and Hajj, and engaging in ongoing charity for the deceased female? And does the reward for these deeds reach her and does she feel it in her grave? And is not seeing her in a dream an indication of something?

Many scholars believe that dedicating the reward of financial and physical acts of worship to the deceased is permissible and reaches them, with the exception of obligatory prayers. The reward of every good deed dedicated to the deceased reaches them. Missed prayers can be compensated for by supplication and increasing ongoing charity (sadaqah (definition) jariyah), such as providing water and building mosques. Not seeing one's mother in a dream does not indicate a lack of dutifulness towards her or that she is not saved from punishment.