It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him): I heard the Messenger of Allah (peace and blessings be upon him) say: "One of the earlier prophets went out to perform istisqa (to pray for rain), and he saw an ant raising some of its legs toward the sky. So he said (to the people): 'Go back, for your prayer has been answered because of this ant's humility.'" This hadith has a sahih (authentic) chain, but the two Shaykhs did not record it. [From the Book of Istisqa (Praying for Rain)]