Invoking Allah for Rain (Istisqaa).

Bukhari :: Book 2 :: Volume 17 :: Hadith 143

Narrated Anas bin Malik:

In the life-time of Allah's Apostle (p.b.u.h) the people were afflicted with a (famine) year. While the Prophet was delivering the Khutba (sermon) on the pulpit on a Friday, a Bedouin stood up and said, "O Allah's Apostle! The livestock are dying and the families (offspring) are hungry: please pray to Allah to bless us with rain." Allah's Apostle raised both his hands towards the sky and at that time there was not a trace of cloud in they sky. Then the clouds started gathering like mountains. Before he got down from the pulpit I saw rain-water trickling down his beard. It rained that day, the next day, the third day, the fourth day and till the next Friday, when the same Bedouin or some other person stood up (during the Friday Khutba) and said, "O Allah's Apostle! The houses have collapsed and the livestock are drowned. Please invoke Allah for us." So Allah's Apostle raised both his hands and said, "O Allah! Around us and not on us." Whichever side the Prophet directed his hand, the clouds dispersed from there till a hole (in the clouds) was formed over Medina. The valley of Qanat remained flowing (with water) for one month and none, came from outside who didn't talk about the abundant rain.

Bukhari :: Book 2 :: Volume 17 :: Hadith 144

Narrated Anas:

Whenever a strong wind blew, anxiety appeared on the face of the Prophet (fearing that wind might be a sign of Allah's wrath).

Bukhari :: Book 2 :: Volume 17 :: Hadith 145

Narrated Ibn Abbas:

The Prophet said, "I was granted victory with As-Saba and the nation of 'Ad was destroyed by Ad-Dabur (westerly wind) .

Bukhari :: Book 2 :: Volume 17 :: Hadith 146

Narrated Abu Huraira:

The Prophet said, "The Hour (Last Day) will not be established until (religious) knowledge will be taken away (by the death of religious learned men), earthquakes will be very frequent, time will pass quickly, afflictions will appear, murders will increase and money will overflow amongst you." (See Hadith No. 85 Vol 1).