MANILA- The hearing on detained Sen. Leila de Lima's disobedience to summons case was once again reset Friday after the supposed testimony of House Justice Committee Chair Reynaldo Umali failed to push through.

There had been amendments to the affidavit Umali initially submitted, but the House leader failed to have it sworn before a prosecutor in time for the June hearing, according to De Lima's camp. This, they said, violated the judicial affidavit rule.

Quezon City Metropolitan Trial Court Branch 34 Judge Ludmila De Pio Lim had earlier accepted Umali's affidavit, prompting the De Lima camp to file a motion for reconsideration.

The prosecution was given 10 days to comment, and the hearing was reset for August 25.

Umali, who was present at the hearing that lasted only 30 minutes, said he is not bothered by the delay, adding that the more important cases against De Lima were the drug charges pending against her.

"Ok lang sa'kin ito...Of course, 2 hearings already conducted at wala pa naa-accomplish after 2 hearings. This is how justice works. We have rules to follow," he told reporters after the hearing.

"'Yung may oversight, may nao-overlook na mga bagay, I cannot blame the prosecution sa dami ng mga kaso. I can understand," he added.

House leaders in December filed the case against De Lima, a staunch critic of President Rodrigo Duterte, for advising her former driver and lover Ronnie Dayan against attending congressional inquiries into her alleged involvement in the drug trade.

The neophyte senator was arrested in February after separate charges were filed in court alleging that she received money from drug dealers at the national penitentiary to fund her senatorial campaign. She has since been detained at Camp Crame's Custodial Center.

De Lima attended Friday's hearing with former Presidential Adviser on the Peace Process Ging Deles and former Civil Service Commission chair Karina David. Dozens of supporters also came by the QC Hall of Justice for the hearing. -- with reports from Mike Navallo, ABS-CBN News