Musannaf Ibn Abi Shayba 3:894

Kuthayyir ibn Hisham narrated to us, from Ja'far ibn Burqan, who said: Maymun ibn Mihran narrated to me that Suwayd ibn Ghafala used to pray Dhuhr when the sun passed its zenith. Al-Hajjaj sent word to him, "Do not precede us in our prayer." Suwayd said, "I have prayed it with Abu Bakr and Umar in this manner, and death is closer to me than that I should abandon it."