aged parents

Q: I have lived a care free life. Taking everything for granted. I am 27 now. My parents are old now. I want to serve them as the best son in the whole but I have no clue what to do for a living and supporting them financially. Please pray for me and tell me a wazifa that Allah's helps descends on me.

Q: If one’s parents are not bed-ridden, but due to old age or sickness, they are unable to take care of themselves, whose responsibility will it be to look after them and assist them?