Zenith Zenith The zenith is an imaginary point directly "above" a particular location, on the imaginary celestial sphere. "Above" means in the vertical direction opposite to the apparent gravitational force at that location. The opposite direction, i.e. the direction in which gravity pulls, is toward the nadir. The zenith is the "highest" point on the celestial sphere. The word "zenith" derives from an inaccurate reading of the Arabic expression (), meaning "direction of the head" or "path above the head", by Medieval Latin scribes in the Middle Ages (during the 14th century), possibly through Old Spanish. It was reduced to 'samt'
Banu Nadir As a result, Muhammad went to the Nadir, asking them to make a contribution towards the blood money of two men killed. Initially most of the Nadir, except Huyayy ibn Akhtab, were inclined to accept Muhammad's request. However, Ibn Ubayy communicated to ibn Akhtab of his intent, along with allied nomads, to attack Muhammad. The Nadir, then postponed the contribution until later that day. Muhammad left the locality immediately accusing the Banu Nadir of plotting to assassinate him, saying to have learned this either through revelation or Muhammad ibn Maslama. According to other sources, the Banu Nadir invited Muhammad to