Sunan Abi Dawud 1166
سنن أبي داود#1166SahihAbd Allah b. Zaid said:The Messenger of Allah (pbuh)went out to the place of prayer to pray for rain. When he wanted to make supplication, he faced the qiblah and turned around his cloak
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Bukhari (1023) Sahih Muslim (894)
In-book reference: 3:6