It is narrated from Sayyiduna Abdullah bin Sa’ib رضي الله عنه that on the day of the conquest of Makkah, the Prophet Muhammad صلى الله عليه وسلم placed his shoes on his left side and performed the prayer.
Hadith Referenceصحيح ابن خزيمه / جماع أبواب الصلاة على البسط / 1014