What is the fine-grained topic of the following text: As mentioned in the Final Testament, the Quran, this is the dua (sacred supplication) of Christ, upon him be peace, at the Last Supper with his sahabas (holy companions) where he invoked ever lasting spiritual nourishment for all of humanity (for the first of us, and for the last of us) as a grace (ayah, divine Sign) and he invoked sustainance from The Sole Sustainer by invoking the Holy Name, Ar-Razzaq. Only return the topic.
Christ's dua in the Quran at the Last Supper