Translation of the verse 45 from Surah Al-Mu’minun : Number of verses 118 - - page 345 - Part 18.
Then We sent Musa (Moses) and his brother Harun (Aaron), with Our Ayat (proofs, evidences, verses, lessons, signs, revelations, etc.) and manifest authority,
Then We sent Moses and his brother Aaron with Our signs and a clear authority
(23:45) Then We sent Moses and his brother Aaron with Our Signs and a clear Authority *39
*39) The use of "a clear Authority" along with "Our Signs" may either mean that the "Signs" were a clear proof that they were Messengers of Allah, or the "Signs" may refer to all other miracles of Prophet Moses than the "staff', which may stand here for a clear Authority, because the miracles shown by means of it were a clear proof that the two brothers had been sent by Allah.
Source : Al-Mu’minun Verse 45: Then We sent Moses and his brother Aaron with Our signs and a clear authority