Answered by Shaykh Faraz Rabbani
Is it permissible to use a feather duster made with real ostrich feathers? Are the feathers tahir in Hanafi, not knowing if the feathers are taken from a live or already slaughtered bird?
Walaikum assalam wa rahmatullah,
I pray that this finds you well, and in the best of health and spirits. May Allah grant you all good and success in this life and the next.
In the Hanafi school, feathers of any animal are pure–regardless of whether they were plucked when the animal was alive or dead. [ Shurunbulali, Maraqi al-Falah ]
And Allah alone gives success.