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Former First Lady Barbara Bush had her trademark sense of humor until the very end, her son revealed to Maria Bartiromo Wednesday. 

The matriarch of the Bush family died Tuesday at age 92, but former President George W. Bush said his mother was "strong, lucid and funny," in her final days, as she was surrounded by her family. 

Bush then shared a light moment from his final visit with his mother. 

"She and I were needling each other. The doctor came in and she turned to the doctor and said, 'You want to know why George W. is the way he is?' The doctor looked somewhat surprised and she said, 'Because I drank and smoked while I was pregnant with him.' ... She's funny," said the 43rd President of the United States alongside former First Lady Laura Bush. 

President Bush said the mother of six truly believed she would be "wonderfully received in the arms of a loving God" and did not fear death. 

"As a result of her soul being comforted on the deathbed, my soul is comforted," said Bush. 

"She was funny and fierce and said her mind," said Laura Bush. 

Barbara Bush passed while holding the hand of her husband of 73 years, former President George H.W. Bush, according to his longtime chief of staff. 

Jean Becker described the 41st president as "broken-hearted" over the loss. 

Watch the clip above and see more of the interview on FoxBusiness.com.

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