The phrase "affirmation from a" is correct and usable in written English.
It can be used when referring to a confirmation or validation received from a specific source or individual.
Example: "We received an affirmation from a respected expert in the field, which strengthened our proposal."
Alternatives: "confirmation from a" or "validation from a".
The takeaway: Myers's testimony is the strongest affirmation from a Trump nominee during a Senate hearing of the scientific consensus that humans cause climate change.
In the course of Dory's investigation, she earns affirmation from a lady (Rosie Perez) who seems at first like an ally and then like a dangerous loon.
She opened the show like the album, with a boastful intro, before revisiting tracks like "Take Me," a dark affirmation from a 2003 EP.
Notes in the margins, underlined passages: an affirmation from a previous reader that certain lines are particularly profound can add an extra edge to your journey through the pages.
In a remarkable affirmation from a museum world that she so often criticized, Ms. Rosler is now receiving a major retrospective organized by Elizabeth Ann Macgregor of the Ikon Gallery in Birmingham, England, and Sabine Breitwieser of the Generali Foundation in Vienna.
Such affirmation from a man like Tywin would likely be more than welcome for Arya, who has likely not felt acceptance since the losses of her father and her original mentor, Syrio Forel.
I got some affirmation from an unexpected source: the television show "Mad Men".
Kevin Durant got all the affirmation from his peers a superstar could want after his monster performance in Game 3 of the NBA Finals Wednesday night.
Part of what I always suspect comes out of articles like this, is the affirmation from some that a browner America should also mean minorities can finally stop complaining about inequalities.
Success is, of course, a beautiful thing, a gift of affirmation from the world that comes in a neat little box.
But better for the president would be an affirmation from the rebels that they would seriously pursue a cease-fire or the possibility of allowing international monitors into the territory the group controls.
