Musnad Ahmad 2:175

'Abd al-Razzaq narrated to us, Sufyan informed us, from Mansur, from Abu Wa'il, from Sabih ibn Ma'bad al-Taghlibi, who said: I was a recent convert from Christianity, and I intended to perform Jihad or Hajj. So I came to a man from my people called Hudaym and asked him, and he commanded me to perform Hajj. So I performed Qiran (combining) between Hajj and 'Umrah... and he mentioned it.