Respect others' privacy, Focus on pleasing Allah through your actions and deeds instead of worrying too much about your appearance .

This hadith speaks about the importance of hair in Islam. It is narrated by Yahya who heard it from Malik who heard it from Ziyad ibn Sad who heard it from Ibn Shihab that the Prophet Muhammad (PBUH) let his hair hang down as Allah willed. This shows us that we should not be too concerned with our appearance and instead focus on pleasing Allah through our actions and deeds. Additionally, this hadith also states that it is permissible for a man to look at the hair of his son's wife or the wife's mother which shows us how important modesty is in Islam and how we should respect each other’s privacy even within families.