MANILA - President Rodrigo Duterte on Saturday credited his late mother, Soledad Duterte, for his wealth, after a recent news report examined the sources of his family's wealth.

The Philippine Center for Investigative Journalism on Thursday published a report on the alleged growing wealth of Duterte's 3 children, Paolo, Sara and Sebastian, who are all running in the May midterm elections.

"P****-i** niyo, hoy yung mga dilaw, all the time I was with my mother, maski nung mayor na ako, ang nagpapakain sakin nanay ko. Yung nanay ko ang may pera. Ang nanay ko nag-iwan ng pera sakin, pero kung magkano bakit ko sabihin sa inyo?" Duterte said in his speech.

(Hey, yellows. All the time I was with my mother, even when I was mayor, my mother fed me. My mother had money. My mother left me money. How much? Why should I tell you?")

"Di naman ninyo pagod yun, di ko naman pagod yun bakit ko ilagay sa SALN? Wala akong bayad sa bahay, wala akong bayad sa kain. For the longest time I was living with my mother libre lahat, pati mura."

(You did not work for it. It wasn't you who got tired. Why should I put it in the SALN? I did not pay for my house, for my food. For the longest time I was living with my mother, everything was free including cuss words.)

Duterte slammed investigative journalists for allegedly being paid.

"Tinitira kami ng mga anak ko, all about lawyrering. Ano bang pakialam nila what happened to my law office? Makita mo yung mga utak ng investigative journalist, binabayaran yan," he said.

(Me and my children are under attack, all about lawyering. Why should they be concerned about what happened to my law office? See the mind of the investigative journalist? They are paid.)

A report by the Philippine Center for Investigative Journalism found that Carpio & Duterte Lawyers firm was established over 10 years ago and was not registered with the Securities and Exchange Commission.

Macalañang earlier shrugged off the report, saying the timing of the its release during the election season was "suspect."

• Palace, Sara Duterte shrug off report on Dutertes' 'growing' wealth

Duterte also said Saturday he would fire more government officials on Sunday.

"Pagbalik ko tomorrow I’ll be firing a lot of people simply for corruption," he said.

(When I come back tomorrow, I’ll be firing a lot of people simply for corruption.)