Sunan Ibn Majah, Chapter: The Chapters of Establishing the Prayer and the Sunnah Regarding Them

that Ibn 'Abbas commanded the Mu'adh-dhin to call the Adhan one Friday, which was a rainy day. He said: "Allahu Akbar, Allahu Akbar, Ashhadu an la ilaha illallah, Ashhadu anna Muhammad (SAW)an Rasulullah (Allah is the Most Great, Allah is Most Great, I bear witness that none has the right to be worshipped but Allah, I bear witness that Muhammad (SAW) is the Messenger of Allah)." Then he (Ibn 'Abbas) said: "Proclaim to the people that they should pray in their houses." The people said to him: "What is this that you have done?" He said: "One who is better than me did that. Are you telling me that I should bring the people out of their houses and make them come to me wading through the mud up to their knees?" (Sahih)