Dr Mahathir Mohamad today took another dig at Deputy Prime Minister Ahmad Zahid Hamidi, raising the asset declaration he made when Mahathir was prime minister.

Mahathir claimed the declaration Zahid made to him in 1996 had revealed the latter possessed nine figures in his bank account.

"Perhaps Zahid has forgotten his asset declaration made to me as prime minister when he was appointed as Umno Youth chief.

"When I asked where he obtained the RM230 million in his bank account, his answer was unclear.

"If he can remember, he should explain where such large amount of money came from," Mahathir said in a blog posting today.