Musnad Ahmad 5:34

Sufyan narrated to us, from Abu Ishaq, from al-Harith, from Ali: Muhammad (peace and blessings of Allah be upon him) decreed: "That the debt is before the bequest, and you recite the bequest before the debt. And that the full siblings (children of the same mother and father) inherit from one another, to the exclusion of the half-siblings from the father's side (children of the same father but different mothers)."