ar-Rashīd

The One who unerringly decrees, appoints or ordains the right way. The One who is the supreme director to the right path and right belief.

The One who perfectly and righteously directs all matters toward their proper conclusion. The One who needs no aid to direct all affairs rightly.
 

From the root r-sh-d which has the following classical Arabic connotations:

to be directed aright
to be caused to follow the right course
to be directed to take the right way
to be caused to hold a right belief
to adopt the right path
 

The name Rashīd is not specifically used as a Beautiful Name in the Qur'ān.

The name al-Rashīd,  according to the dictionary Lisān al-'Arab by al-Mukarram, denotes:

The One who is the Director to the right way, and the One whose regulations are conducted to the attainment of their ultimate objects in the right way, without anyone's aiding in directing their course aright.

Rashīd refers primarily to being directed to, or set upon, the appointed right path with supreme certainty of the intended outcome, while Hādī refers primarily to the continuing guidance, leadership and direction that is kindly provided to reach the path and also along the path until the goal is achieved.

The word murshid, meaning a director to the right path, is also derived from this same r-sh-d root.