(5) Chapter: Before undressing
(5) ما يقول إذا وضع الثوب
Hisn al-Muslim 9
Bismillāhi
In the Name of Allah.
Reference: At-Tirmidhi 2/505, among others. See 'Irwa'ul Ghalil no. 49 and Sahihul-Jami' 3/203
بِسْمِ الله
Reference: Hisn al-Muslim 9