Prayer of Bishop of Nantes

In Allison's *History of the French Revolution*, ed. 1849, at page 432. vol. i., there occurs the following passage: "The Bishop of Nancy commenced, as customary, with the prayer: 'Receive, O God, the homage of the Clergy, the respects of the Noblesse, and the humble supplications of the Tiers Etat.'" This formula was, the historian tells us, received with a storm of disapprobation by the third order. Will any of your contributors be so obliging as to inform me where the form of prayer spoken of as *customary* is to be found?