Volume 1, Book 11, Number 590:
Narrated ‘Abdullah bin Al-Harith:
Once on a rainy muddy day, Ibn ‘Abbas delivered a sermon in our presence and when the Mu’ad –
hdhin pronounced the Adhan and said, “Haiya ala-s-sala(t) (come for the prayer)” Ibn ‘Abbas
ordered him to say ‘Pray at your homes.’ The people began to look at each other (surprisingly). Ibn
‘Abbas said. “It was done by one who was much better than I (i.e. the Prophet or his Mu’adhdhin),
and it is a license.’