Musannaf Ibn Abi Shayba 3:3098

Abu Usama narrated to us, from Abdullah bin al-Walid, he said: Uthman bin Abdullah bin Mawhab narrated to me, he said: Said bin al-Musayyib said: "That I pray Jumu'ah at al-Harrah is more beloved to me than stepping over [the necks of the people]."