Supplication in any place where supplication takes place.

The Shaykh : Among its types is that a person supplicates in any place, in any place where supplication is possible, in the mosque, in the house, and in any state, in prostration, in the tashahhud, between the adhan and the iqamah, he supplicates to Allah the Exalted for rain. The Prophet (peace and blessings be upon him) once supplicated to Allah to send down rain until a certain man stood up and blocked the opening in his wall with his garment. The opening is the gap in the wall through which the floodwaters enter. So the rain came down, and the rain came down, and the people feared drowning. They said to the man: It is not possible to hold back the sky until you stand up and block the opening in your wall with your garment. So the man stood up and blocked the opening, meaning the gutter. The gap in the wall where the floodwater enters the wall. When he blocked it with his garment, the rain stopped. Glory be to Allah! A sign among the signs of Allah, and a sign among the signs of the Messenger (peace and blessings be upon him).