حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، قَالَ قَرَأْتُ عَلَى مَالِكٍ عَنْ نَافِعٍ، أَنَّ ابْنَ عُمَرَ، أَذَّنَ بِالصَّلاَةِ فِي لَيْلَةٍ ذَاتِ بَرْدٍ وَرِيحٍ فَقَالَ أَلاَ صَلُّوا فِي الرِّحَالِ ‏.‏ ثُمَّ قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَأْمُرُ الْمُؤَذِّنَ إِذَا كَانَتْ لَيْلَةٌ بَارِدَةٌ ذَاتُ مَطَرٍ يَقُولُ ‏"‏ أَلاَ صَلُّوا فِي الرِّحَالِ ‏"‏ ‏.‏

'Abdullah b. 'Abbas reported that he said to the Mu'adhdhin on a rainy day

When you have announced" I testify that there is no god but Allah; I testify that Muhammad is the Messenger of Allah," do not say:" Come to the prayer," but make this announcement:" Say prayer in your houses." He (the narrator) said that the people disapproved of it. Ibn 'Abbas said: Are you astonished at it? He (the Holy Prophet), who is better than I, did it. Jumu'a prayer is no doubt obligatory, but I do not like that I should (force you) to come out and walk in mud and slippery ground.