Sayyiduna Abdullah bin Zaid (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) went out with the people to the Eidgah to pray for rain, then he faced the Qiblah and turned his cloak inside out.
Hadith Referenceسنن دارمي / من كتاب الصللاة / 1572