Narrated Aishah, Ummul Muminin: The hair of the Messenger of Allah ﷺ were above wafrah and below jummah.
Shaykh Umar Farooq Saeedi
Benefits and Issues: ➊ When the hair of the head reaches the earlobes, it is called (wafrah), and when it reaches the shoulders, it is called (jummah). The length in between these is referred to as (limmah). ➋ It is permissible for men to keep their hair at any of the aforementioned lengths, provided that the intention is to follow the example of the Prophet (sallallahu alayhi wa sallam).
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 4187