Edited sentence: (Abdu'l-Baha, The Will and Testament, p.But he  was commanded in the Will & Testament to appoint a successor:.It is incumbent upon the Guardian of the Cause of God to appoint in his own life-time him that shall become his successor, that differences may not arise after his passing.O ye beloved of the Lord.Saying that Shoghi Effendi failed to appoint a successor is saying Shoghi Effendi went against Abdu'l-Baha's explicit command and thus broke the Covenant