It is narrated from Sayyiduna Abdullah bin Zaid (may Allah be pleased with him) that once the Prophet (peace and blessings of Allah be upon him) went out to pray for rain (Salat al-Istisqa). On that occasion, he turned his cloak while facing the Qiblah and led two rak'ahs with loud recitation.
Hadith Referenceمسند احمد / مسند المدنيين رضي الله عنهم اجمعين / 16460
Hadith Gradingحکم دارالسلام:حديث صحيح، خ: 1005، م: 894، وهذا إسناد ضعيف لضعف صالح