Musannaf Ibn Abi Shayba 3:3912

Waki’ narrated to us, he said: Qays narrated to us, from Abu Husayn, from Khuzam ibn Jabir, he said: I heard Ibn Mas’ud saying: "When it is a cloudy day, then hasten the Dhuhr prayer, delay the ‘Asr prayer, and delay the Maghrib prayer."