(2) باب فِي أَىِّ وَقْتٍ يُحَوِّلُ رِدَاءَهُ إِذَا اسْتَسْقَى
Narrated Abd Allah b. Zaid al Mazini:
Abd Allah b. Zaid al Mazini said: The Messenger of Allah (pbuh) went out to the place of prayer and made supplication or rain, and turned around his cloak when the faced the qiblah.
Reference: Sunan Abi Dawud 1167
In-book reference: Book 3, Hadith 7
English translation: Book 3, Hadith 1162