Musannaf Ibn Abi Shayba 3:5045

Abu Bakr narrated to us, he said: Jarir narrated to us, from Mughira, who said: Abu Wa'il used to send his servant (or his maidservant) while she was menstruating to Abu Razin, so she would bring him the Mushaf from him, and she would hold it by its strap.