“Family is a massive thing for Adele and she was keen to make it clear that she could take all the time she needed away before returning to work.
“The passing has hit them both hard.”
Despite the singer telling her to take leave, Verona still photographed the second weekend of shows, with Adele dedicating her 2008 hit Make You Feel My Love to her.
Adele paused her performance to pay tribute, telling the audience, “I would really appreciate it if you could all put on your torches on your phone and shine them like stars so I know her mum can see us.”
Verona later shared footage of the moment online and wrote, “One of the last things I got to do with my mum on the Sunday before she passed was show her the photos from weekend one.
“I was so excited to show them to her and was hopeful I’d be able to bring her to one of the shows. Thank you Adele and everyone at the show for honouring my mum.”
The singer also revealed her health struggles to the audience, which led to the initial run of performances being delayed earlier this year.
“A week before the shows I was as sick as a dog — you can imagine my panic,” she said.
“I was like, ‘I am going to have to be on that stage in a hospital bed with a bunch of doctors and nurses.’
“But thank goodness the good Lord, he took me under his wing and I was better, but I had to watch a lot of production rehearsals from up at the top balcony.”
Adele’s Vegas residency runs until the end of March.