An Nasai

"A man came to the Messenger of Allah (ﷺ) and said: 'O Messenger of Allah, the livestock have died and the routes have been cut off; pray to Allah (SWT), the Mighty and Sublime.' So the Messenger of Allah (ﷺ) prayed to Allah (SWT) and it rained from that Friday until the next. Then a man came to the Messenger of Allah (ﷺ) and said: 'The houses have been destroyed, the routes have been cut off and the livestock have died.' He said: 'O Allah, on the tops of the mountains and hills, in the bottom of the valleys and where the trees grow.' So (the rain) was lifted from Al-Madinah like a garment being removed."

"Sufyan said: 'I asked 'Abdullah bin Abi Bakr who said: I heard it from Abbad bin Tamim who narrated it from his father, that 'Abdullah bin Zaid, who was shown the call to prayer (in a dream) said: 'The Messenger of Allah (ﷺ) went out to the prayer place to pray for rain. He faced the kiblah and turned his cloak around and prayed two rak'ahs.'"

His father said: "So and so sent me to ask him how the Messenger of Allah (ﷺ) prayed for rain (Istisqa')." He said: 'The Messenger of Allah (ﷺ) went out beseeching and humble, (dressed) in a state of humility. He did not give a Khutbah like this Khutbah of yours, and he prayed two rak'ahs.'"

The Messenger of Allah (ﷺ) prayed for rain wearing a black khamisah.

His father said: "I asked Ibn 'Abbas how the Messenger of Allah (ﷺ) prayed for rain. He said: 'The Messenger of Allah (ﷺ) went out (dressed) in a state of humility, beseeching and humble. He sat on the minbar but he did not deliver a Khutbah like this Khutbah of yours, rather he kept supplicating, beseeching and saying the takbir, and he prayed two rak'ahs as he used to do during the two 'Eids.'"