In one of the mosques I saw one of the seekers of knowledge wearing his ‘abayah (cloak) inside before the prayer for rain (istisqa’), and after the prayer I asked him he reason for that, because what I know is that the ‘abayah should be turned inside out after the prayer and khutbah are over. He said: There’s nothing with that, rather we turned it inside out before the prayer so that when we changed it again it would be right side out. What is your opinion concerning this? May Allaah reward you with good.
The apparent meaning of the ahaadeeth narrated from the Prophet (peace and blessings of Allaah be upon him) concerning the prayer for rain (salaat al-istisqa’) is that the rida’ (cloak, upper garment) should be worn as normal, and it should be turned inside out during the khutbah when the imam turns his rida’ inside out.
With regard to turning the rida’ or ‘abayah inside out before that, the more correct view is that this is not prescribed and is contrary to the Sunnah. May Allaah help us all.