The Supreme Court today summoned Advocate Syed Mamun Mahbub to appear before it on August 20 for posting a derogatory status about Chief Justice Syed Mahmud Hossain on Facebook.

The apex court also issued a rule asking Syed Mamun Mahbub, a Supreme Court lawyer, to explain why contempt of court proceedings should not be brought against him for posting the status on his Facebook profile.

A six-member bench of the Appellate Division of the SC, headed by Chief Justice Syed Mahmud Hossain, came up with the order and rule after Attorney General Mahbubey Alam raised the issue before the bench during the virtual proceedings today.

Contacted, Syed Mamun Mahbub told The Daily Star that he heard about the SC order on him.

"I have mistakenly used a word about the chief justice in a Facebook status. I have already deleted the status from my Facebook. I will appear before the Supreme Court on August 20 and will offer unconditional apology for my mistake," he said.

Advocate Mamun Mahbub also said he will reply to the rule after receiving the order of the apex court.