´It was narrated from Maimunah that:` When the Prophet (ﷺ) prostrated he would hold his arms out from his sides so that if a lamb wanted to pass beneath his arms it would be able to do so.
Hadith Referenceسنن نسائي / كتاب التطبيق / 1110
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح مسلم