Abide by Islamic laws and regulations when it comes to marriage proposals or other matters related to family life; Respect your family members; Treat them with kindness regardless of their relationship with you; Pursue relationships which are allowed by Islam only .

This hadith is about the Prophet Muhammad's refusal to marry the daughter of Hamza, who was his foster niece. A foster niece is a brother's daughter, and in this case, it was not permissible for him to marry her according to Islamic law. This hadith teaches us that we should always abide by Islamic laws and regulations when it comes to marriage proposals and other matters related to family life. It also shows us that even though we may have strong feelings towards someone, if they are not allowed by Islamic law then we must refrain from pursuing them further. We should also be respectful towards our family members and treat them with kindness regardless of their relationship with us.