The growth of the beard that you described (covering the chin) is sufficient. Having the full beard is not wajib. Also, please note that on Shar'i issues, one has to fulfill what is incumbent even if the parents object to it.
Is it okay to shave from a full beard to just some beard on the chin as my mother doesn't agree to it?
Question originally asked on
Aalim Network Archives https://www.al-islam.org/organizations/AalimNetwork/msg00725.html
Professor Liyakat Takim is the Sharjah Chair in Global Islam at McMaster University in Canada.