Ibn Jurayj (may Allah have mercy on him) said concerning the verse "And among the people is he who sells himself" [Surah al-Baqarah: 207]: This verse was revealed about Suhayb bin Sinan and Abu Dharr (may Allah be pleased with them both), and the one who caught up with Suhayb (may Allah be pleased with him) on the road to Madinah was Qunfudh bin Umayr bin Jud'an.
Hadith Referenceالمعجم الكبير للطبراني / باب الصاد / 7258