Musannaf Ibn Abi Shayba 33:370

Waki’ narrated to us, from Sufyan, from Thawr, from Salim ibn ‘Amir, from Abu al-Darda’, who said: "Excellent is the hermitage of a man: his house, in which he guards his tongue and his sight. And beware of the marketplace, for it is a place of vanity and distraction."