Sahih Bukhari Volume 1, Book 9, Hadith Number 478

Narated By ‘Aun bin Abi Juhaifa : that he had heard his father saying, “Allah’s Apostle came to us at mid-day and water was brought for his ablution. He performed ablution and led us in Zuhr and ‘Asr prayers with an ‘Anza planted in front of him (as a Sutra), while women and donkeys were passing beyond it.”