The Prophet (saw) used to give a particular portion of his guidance towards the youth. The Prophet (saw) said to Ibn ‘Abbaas:
“O young boy, verily I am going to teach you some words (of advice): preserve Allaah and He will preserve you. Preserve Allaah and you will find him in front of you. If you ask for something, then ask Allaah. If you seek assistance then seek assistance of Allaah.” [Tirmidhee, Ahmad amongst others]
In another hadeeth, he (saw) said to Mu’aadh Ibn Jabal while he was riding behind him on his donkey:
“O Mu’aadh, do you know the rights of Allaah on the servant and the servant’s rights on Allaah?” [Bukhaaree & Muslim]
In another hadeeth the Prophet (saw) said to ‘Umar Ibn Salamah, and he used to teach him while he was a young boy. When ‘Umar laid his hand on the plate, the Prophet (saw) grabbed his hand and said:
“O lad, say the name of Allaah, eat with your right hand, and eat from that which is closer to you.“
… The religion places great emphasis concerning the upbringing of the youth because the boys will be the men of the future. They are the ones who will succeed their fathers, inherit from them and establish their role in life.
[Taken from “Min Mushkilaat Ash-Shabaab Wa Kayfa ‘Aaleejuha Islaam” by Shaykh Saalih Al-Fawzaan, Pp 16-17]