Take care of your parents as they did for you and make dua for them constantly. The prophet ﷺ said,
“Blessed is one who is good to his parents. Allah Almighty will extend his lifespan.”
[Source: al-Adab al-Mufrad lil-Bukhārī 22]
Love them more than anything except Allah…

and His Messenger ﷺ. Be good to them, for parents are rewarded for their good children. Make plenty dua for them, the Prophet ﷺ said,
“Verily, Allah Almighty will raise the status of his righteous servants in Paradise and they will say:
“O Lord, what is this?”

Allah will say:
“This is due to your child seeking forgiveness for you.”
[Source: Musnad Aḥmad 10611]
Grade: Hasan (fair) according to Al-Arna’ut