Mian Aamir
“And We had certainly given Luqman wisdom so that he "Be grateful to Allah ." And whoever is grateful, is grateful for [the benefit of] himself. And whoever denies [His favor] - then indeed, Allah is Free of need and Praiseworthy
And [mention, O Muhammad], when Luqman said to his son while he was instructing him, "O my son, do not associate [anything...] with Allah . Indeed, association [with him] is great injustice."
“And We have enjoined upon man [care] for his parents. His mother carried him, [increasing her] in weakness upon weakness, and his weaning is in two years. Be grateful to Me and to your parents; to Me is the [final] destination. But if they endeavor to make you associate with Me that of which you have no knowledge, do not obey them but accompany them in [this] world with appropriate kindness and follow the way of those who turn back to Me [in repentance]. Then to Me will be your return, and I will inform you about what you used to do.”( Al-Quran, Sura 31:12-15)
In the above quoted verses of Al-Quran the following facts are manifest:
1. To associate any entity with God is great injustice. It is Right of the God that we should not associate with God any body;
2. After telling us His Right, He described the rights of our parents. After Him, He gave importance to rights of our parents and enjoined that we should be good to our parents and take care of them; And
3. Even if parents happen to be non Muslims yet we are enjoined to be good to them but we should not obey them if they ask us to revert from Islam.