Is Porcini Mushroom Powder sold in stores? Orlando, FL, USA

I’m trying to make a lentil soup recipe and it asks for porcini mushroom powder. I’ve already bought all the other ingredients like the roll, carrots, celery, and onion and garlic. I assumed it would be easy to find or readily available in stores, but I just left Whole Foods and they don’t have it. I also went to target Walmart and a couple grocery stores in my area.

If I try to order it online, it looks like it won’t arrive for at least two weeks regardless of any website I go to does anyone know what store carries Porcini mushroom powder in this area because I literally cannot find one.