Sunan Ibn Majah Book 5, Hadith 939

حَدَّثَنَا أَحْمَدُ بْنُ عَبْدَةَ، حَدَّثَنَا عَبَّادُ بْنُ عَبَّادٍ الْمُهَلَّبِيُّ، حَدَّثَنَا عَاصِمٌ الأَحْوَلُ، عَنْ عَبْدِ اللَّهِ بْنِ الْحَارِثِ بْنِ نَوْفَلٍ، أَنَّ ابْنَ عَبَّاسٍ، أَمَرَ الْمُؤَذِّنَ أَنْ يُؤَذِّنَ، يَوْمَ الْجُمُعَةِ وَذَلِكَ يَوْمٌ مَطِيرٌ فَقَالَ اللَّهُ أَكْبَرُ اللَّهُ أَكْبَرُ أَشْهَدُ أَنْ لاَ إِلَهَ إِلاَّ اللَّهُ أَشْهَدُ أَنَّ مُحَمَّدًا رَسُولُ اللَّهِ ‏.‏ ثُمَّ قَالَ نَادِ فِي النَّاسِ فَلْيُصَلُّوا فِي بُيُوتِهِمْ ‏.‏ فَقَالَ لَهُ النَّاسُ مَا هَذَا الَّذِي صَنَعْتَ قَالَ قَدْ فَعَلَ هَذَا مَنْ هُوَ خَيْرٌ مِنِّي تَأْمُرُنِي أَنْ أُخْرِجَ النَّاسَ مِنْ بُيُوتِهِمْ فَيَأْتُونِي يَدُوسُونَ الطِّينَ إِلَى رُكَبِهِمْ ‏.‏

It was narrated from ‘Abdullah bin Harith bin Nawfal 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 Muhammadan 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 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?”