Musnad Ahmad 923:2

Bahz narrated to us, Hammam narrated to us, Qatadah narrated to us, from Yahya ibn Ya'mar, from Sulayman ibn Surad al-Khuza'i, from Ubayy ibn Ka'b, who said: I recited a verse, and Ibn Mas'ud recited it differently. So I went to the Prophet, may Allah bless him and grant him peace, and he mentioned the hadith.