Khabbab reported: We complained to the Messenger of Allah (ﷺ) (the difficulty of) saying prayer on the intensely heated (ground or sand), but he paid no heed to our complaint
Book 5 · Hadith 239
صحيح مسلم
Khabbab reported: We complained to the Messenger of Allah (ﷺ) (the difficulty of) saying prayer on the intensely heated (ground or sand), but he paid no heed to our complaint