Hath bandh kar namz parhana kesa hai? Agar ye galat hai to koi hadess ya rawayaat pesh karen ki wazeh hojaye

Hath bandh kar namaz padhne se namaz batil ho jati hy.
Hath bandhna Nabi saww ke zamane me nahi tha. Yeh dusre khalife k zamane me huva