What is the ruling on the "cornrows" hairstyle for men, which resembles the hairstyles of non-believers? Does water reach all of the hair during ghusl, and what about wiping the hair during wudu? Does this hairstyle fall under the hadith: "I have been commanded to prostrate on seven bones and not to tuck up a garment or hair"?

It is permissible for men to braid their hair as long as it does not involve imitating the disbelievers. It is disliked for a worshipper to tie up his hair in prayer. It is not obligatory to undo braids for ablution (wudu'); it is sufficient to wipe over them. As for ritual bathing (ghusl (definition)), it is not obligatory to undo them if water can reach all the hair and skin; otherwise, it is obligatory to undo them.