question #3 Sahih Muslim 894d, Book 9, Hadith 4 : How does the act of turning one’s mantle relate to the prayer for rain?

The Messenger of Allah (ﷺ) went out one day in order to pray for rain. He turned his back towards people, supplicated before Allah, facing towards Qibla, and turned his mantle round and then observed two rak’ahs of prayer.