Respect for parents includes courtesy, service, gentle speech, and appropriate help with legitimate needs. The prohibition of عُقُوقُ الْوَالِدَيْنِ does not imply unqualified obedience to a demand to lie or harm someone.
Example: helping relatives at parents’ request, within one’s means, is good conduct. If asked to make a false accusation against an innocent person, one should refuse respectfully.
The aim is to fulfil parents’ legitimate rights without committing wrongdoing.