(76) باب الصَّلاَةِ بِمِنًى
Narrated Az-Zuhri:
When Uthman placed his property at at-Ta'if and intended to settle there, he prayed four rak'ahs. The rulers after him followed the same practice.
Reference: Sunan Abi Dawud 1963
In-book reference: Book 11, Hadith 243
English translation: Book 10, Hadith 1958