Ashaz is a Sahabi name but I would like to have proof for this, and what is the meaning of this name and from which hadith book is it?

We did not come across in our research any Sahabi by the name ‘Ashaz’. 
There is a Sahabi by the name ‘Ashaj’.  It will be written as اشج in Arabic and Urdu and pronounced Ashaj.  The six books of hadith (Sihah al-Sitta) mention about a delegation from that came to visit Rasulullah (Sallalahu Alaihi Wasallam).  The leader of the delegation was Ashaj ‘Abd al-Qays.  Imam Abu Dawood narrates in his Sunan the incident in the following words: 
عن زارع وكان فى وفد عبد القيس قال لما قدمنا المدينة فجعلنا نتبادر من رواحلنا فنقبل يد النبى صلى الله عليه وسلم ورجله قال وانتظر المنذر الأشج حتى أتى عيبته فلبس ثوبيه ثم أتى النبى صلى الله عليه وسلم فقال له  إن فيك خلتين يحبهما الله الحلم والأناة قال يا رسول الله أنا أتخلق بهما أم الله جبلنى عليهما قال بل الله جبلك عليهما قال الحمد لله الذى جبلنى على خلتين يحبهما الله ورسوله (ابو داود)
It is narrated from Zaari’, who was one from the delegation of ‘Abd al-Qays, “When we reached Madinah, we quickly dismounted from our caravans and kissed the hands and feet of Rasulullah (Sallalahu Alaihi Wasallam).  Mundhir al-Ashaj waited until he reached his luggage and donned new clothes then proceeded to visit Rasulullah (Sallalahu Alaihi Wasallam).  Rasulullah (Sallalahu Alaihi Wasallam) said to him, “Verily you have two good qualities in you which Allah loves; forbearance and patience.”  He asked, “O Rasulullah, did I instilled this qualities within myself or was it Allah who dispose them in me?” Rasulullah (Sallalahu Alaihi Wasallam) replied, “Allah has naturally disposed these qualities in you.”  He said, “All praise is to Allah who disposed in me two qualities which Allah and his Rasul love.” Abu Dawood

Plz guide me… can i have the name of my son “Muhammad Ashaz Ur Rehman”

Write your comment my name is Ashaz and i’m proud with the name