He (peace be upun him) used to supplicate Allah for rain on the pulpit while delivering the Friday sermon and he also prayed for rain on other days. And he also prayed for rain while sitting in the mosque, raising his hands and supplicating Allah, the Mighty and Majestic.

His supplications for rain include:
"Allaahumm-asqi `ibaadaka wa bahaa'imaka wanshur rahmataka wahyee baladakal-mayyit."
(O Allah, provide water for Your servants and your animals, spread Your mercy and revive your lifeless land.)
"Allaahumma-sqina ghaythan mugheethan, maree'an, maree`an, naafi`an ghayra dhaarrin, `aajilan, ghayra aajilan."
(O Allah, bless us with rain that is reviving, satisfying, fruitful, beneficial and not harmful, immediate and not delayed.)

Whenever he (peace be upun him) saw clouds and wind, anxiety showed on his face and he paced back and forth. When it rained he was relieved.

Upon seeing the rain he (peace be upun him) used to say:
"Allaahumma sayyiban nafi'an." (O Allah, let it be a beneficial rain.) He (peace be upun him) would remove part of his garment to expose his body to the rain. When asked about it, he said it was the renewal of his Lord's covenant.

When it rained too heavily, people requested that he (peace be upun him) ask Allah to withhold the rain and he did so, saying: "Allaahumma hawalayna wa la `alayna. Allaahumma `alath-thiraabi wal-akaami wa butoonil-awdiyati wa manaabitish-shajar."
(O Allah, around us and not upon us. O Allah, on the woods, the mountains, the hills, the valleys and the trees.)