Abu Dawud Book 36, Hadith Number 4825.
Chapter : Not known.
Narated By AbuMusa al-Ash’ari : The Prophet (PBUH) said: Glorifying Allah involves showing honour to a grey-haired Muslim and to one who can expound the Qur’an, but not to one who acts extravagantly regarding it, or turns away from it, and showing honour to a just ruler.