What is meant by "letting the beard grow" and "the cheek," and what is the ruling on shaving the cheeks and sideburns, and are the sideburns, the cheek, and the earlobe area part of the beard? And what is the reason for letting the beard grow? And what is meant by "unusual length"? And what is the ruling on what flies off and is excessive from the beard? And what is the ruling on shortening the beard if it exceeds the chest? And is Ibn Mas'ud's prohibition of plucking the cheeks valid? And are the narrations from Ibn Abd al-Aziz regarding the rejection of the testimony of one who plucks valid?

The answer is summarized in the following points:

- Ibn Muflih's statement in "Al-Furu'" regarding trimming and shortening the mustache: One should trim his mustache or shorten its edges, and trimming it is preferable. Ibn Hazm mentioned a consensus that shortening the mustache and letting the beard grow is obligatory, while the madhhab followers generally stated it is recommendable. - Ibn Muflih indicated in "Al-Adab Al-Shar'iyyah" the recommendation of letting the beard grow, and that it is best to leave it. It was also said that it is permissible to take from it what exceeds a fistful. - Some scholars believe that the cheek hair is part of the beard and it is not permissible to shave it, just as the hair on the sides of the face (growing on the cheek) is part of it. - The zygomatic bone (wajnaha) is located above the cheek, and the hair on the cheekbones is not considered part of the beard. - The 'idharan (sideburns) are the sides of the beard, and they are the hair growing on the bone adjacent to the ear canal, connecting to the temple from above and the 'arid (lower part of the cheek) from below. - The reason for the obligation of letting the beard grow is the prophetic command and to differ from non-Muslims. - The beard should be left to grow absolutely without trimming or styling, as this is the apparent Sunnah. - It is forbidden to pluck or shave the cheek hair, and it falls under the ruling of plucking (namṣ) which is prohibited. - The testimony of one who plucks his beard is rejected.