Abdullah (bin Masud) said: When any of you bows, he should spread his arms on his thighs and clap both his palms (Placing them between the knees), as if I am seeing the variation of the fingers of the Messenger of Allah ﷺ.
Hadith Referenceسنن ابي داود / أبواب تفريع استفتاح الصلاة / 868
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح مسلم (534)