There is a prohibition against placing the hands on the hips during prayer.We asked Hisham, "Did he report this from the Prophet ﷺ?"He nodded his head, meaning yes.
حدثنا يزيد أخبرنا هشام بن حسان عن محمد بن سيرين
نهي عن الاختصار في الصلاة فقلنا لهشام ذكره عن النبي ﷺ فقال برأسه أي نعم
Its isnad is sahih, and it has already appeared with this same isnad at 7884, with the addition of a tafsir of the abbreviation, from the words of Hisham bin Hassan.