Trim your mustache and let your beard grow according to Islamic teachings .

The hadith narrated by Ibn 'Umar states that the Messenger of Allah ﷺ advised to trim one's mustache and let their beard grow. This is a practice that has been followed by Muslims for centuries, as it is seen as a sign of piety and respect for Islamic teachings. It also serves as an outward expression of faith, which can be seen by others in society. Additionally, it is believed that this practice helps to maintain hygiene and cleanliness, which are important values in Islam. Furthermore, this hadith teaches us about self-discipline and moderation in all aspects of life; we should not go overboard with anything but instead strive for balance in our lives.