(12) باب النَّهْىِ عَنِ التَّخَصُّرِ، فِي الصَّلاَةِ
It was narrated from Abu Hurairah that:
The Prophet (ﷺ) forbade praying with one's hands on one's waist. (PT)
Reference (PT): Sunan an-Nasa'i 890 (PT)
In-book reference (PT): Book 11, Hadith 15 (PT)
English translation (PT): Vol. 2, Book 11, Hadith 891 (PT)