Mukhtasar Bukhari (Abridged) 553 — Supplicating for rain in Friday

Narrated from Sayyiduna Anas (may Allah be pleased with him), he said: Then the Messenger of Allah (peace and blessings of Allah be upon him) stood during the sermon, raised both his hands and said, "O Allah, send down rain! O Allah, send down rain! O Allah, send down rain!"