Thus by commanding us to pray for them whenever we pray for...
Thus by commanding us to pray for them whenever we pray for him the Prophet was actually informing us of their high merit being the most obedient to God and His Messenger.
The Record Attests to their merit All Muslims agree that ‘Ali the Prophet's cousin whom the Prophet "brothered" and his wife Fatimah (the Lady of Light) the dearest child of the Messenger and their two children Al-Hassan and Al-Hussein are from the chosen members of the House of Muhammad and that they are included in our prayers for him. The high qualifications of the chosen relatives of Muhammad are the main reason for the very unique honor bestowed upon them.
Imam ‘Ali stood above all others after the Prophet. He was the strongest supporter of the Messenger of God. He never hesitated to give his life for the promotion of Islam. The readers of history can easily know that Imam ‘Ali was the top defender of Islam and the most adherent to its rules. Imam ‘Ali's attitude towards personal power and prestige was unique. Whenever he had to choose between adherence to his ideals and the pleasures of the earthly life he unhesitatingly chose the former.
History testifies that he preferred to lose the leadership of the Muslim World rather than to accept a condition in which he did not believe. He was offered this leadership contingent on his pledge to follow the Book of God the instructions of the Messenger and the traditions of the first two Caliphs in the absence of the Quranic and the Messenger's instructions.
He replied: "(I shall follow the Book of God and the instructions of His Messenger; and in the absence of specific teachings of the two sources) I shall endeavor to the best of my knowledge and ability."[^2] His knowledge was amazing in its depth and extensiveness.
His sermons lectures and the words contained in Nahjul-Balaghah (Path of Eloquence) testify to the authenticity of the reported statement of the Messenger: "I am the city of knowledge and ‘Ali is its gate; so whoever wants to enter the city should come through the gate."[^3] The record of the other three distinguished members of the House of Muhammad Fatimah and her two children Al- Hassan and Al-Hussein shows that they were the most sincere servants of Islam.
The authentic hadiths spoke of their distinctions and qualifications as permanent allies of justice and truth.