english: here V µ is an arbitrary timelike vector, δ µ is perpendicular to V µ and so is spacelike, and ℓ¯µ0 is completely arbitrary.
non_english: Rahmatolah ngalaisam | têgêse pangandikaning | wong tuwa kang dadi imam | kang aran Abulaèsi | kang anak bin Asari | Ibrahima Smarakandhiyu |[59] pan ing sipat Mukhamad | ingkang sinung rahmat dening | ing Allahu atasing Nabi Mukhamad ||