"See other people here all us are here for our great leader Nnamdi Kanu", Abaribe said.
Kanu was arrested on October 15, 2015 in Lagos and charged with treason and terrorism.
Three other pro-Biafra agitators on trial with Kanu were however denied bail.
Kanu is undergoing trial before Justice Binta Nyako, over allegations of plotting secession.
The IPOB leader is also expected to provide three sureties one of whom must be a serving Senator, a Jewish religious leader and highly respected person, who own land anywhere in Abuja.
The judge further ordered that Kanu must deposit both his Nigerian and British passports with the court and that a report on the progress of his health must be made available to her on a monthly basis.
There was mild drama at the start of proceedings as Ekiti State Governor, Ayodele Fayose and former Minister of Aviation Chlef Femi Fani-Kayode stormed the court to show solidarity Kanu.
Kanu was arraigned alongside Chidiebere Onwudiwe, Benjamin Madubugwu and David Nwawuisi on charges of treasonable felony and criminal defamation.
The judge last month struck out the charges, related to management of unlawful organisation, intention to manufacture bomb, improper importation of a radio transmitter.