Sunan Ibn Majah, Chapter: The Chapters on Hajj

"We performed Tawaf with Abu 'Iqal in the rain, and when we finished our Tawaf, we came behind the Maqam. He said: I performed Tawaf with Anas bin Malik in the rain. When we finished the Tawaf, we came behind the Maqam and prayed two Rakah.' Anas said to us: 'Start your deeds anew, for you have been forgiven. This is what the Messenger of Allah (saw) said to us when we performed Tawaf with him in the rain.'"