When I was about to finish my Wudu I noticed there was a small black thing on my hand the size of half a centimetre or less and I was not hundred percent sure did it move or not when I washed my hands so is the Wudu valid? I think it was material that came off of my headphones that got onto my hand

Ustadh AbdulAziz al-Haqqan
Don't fall into Waswas. This won't hurt your Wudhu