When the Supreme Lord Buddha was residing in the Jetavana monastery built by count Anepidu in the City of Savath, one day the Blessed One ascended the Pindapatha in the morning. There was a Brahmin (Brahmin is a person who belonged to the highest caste in ancient India)  named “Aggika Bharadwaja” who lived in the city of Savath. 

At that time The blessed one went home to home for Pindapatha, and was on the way to Aggika Bharadwaja’s house. The Brahmin who saw the Supreme Buddha coming towards his house from a distance and said: “Stop! the despicable monk, Stop! the disgraceful lower caste one!” Upon hearing these words, the Blessed One asked the Brahmin if he knew how to differentiate a despicable and disgraceful being from others. The Brahmin replied that he doesn't know how to and he asked the supreme lord buddha tell him how to if he knows.   

Then the blessed one preached the Brahmin about the “Wasala Sutta”. “Wasala” means  disgraceful or despicable being. So this sutta is about how to differentiate a being whether he is “Wasala” or not. The meaning of the Wasala Sutta can be explained as follows. 

1. Is there anger in a person, Is there hatred in a person, are there sinful intentions that destroy the good qualities of others, lacking the right vision, Is there cunning thoughts to deceive others, he shall be called a “Wasala”
2. When a person harms, tortures  or kills other beings, or a  person have no kindness or compassion for other beings, he shall be called a “Wasala”
3. Someone destroys villages & towns, invades and carry out a revolution by torturing others, he shall be called a “Wasala”
4.  Does a person take something that belongs to someone else, what is not given to him, with stealing intentions,  he shall be called a “Wasala”
5. If someone takes a loan from someone else and runs away accusing them of not having a loan, that person shall be called a “Wasala”
6. Someone robs and kill or hurt people to steal what is valuable to them, because of greed, he shall be called a “Wasala”
7. When a someone is asked for evidence, if he lies because of wealth, or because of himself, or because of another, he shall be called a “Wasala”
8. If a person commits adultery with a partner of a relative or a partner of a friend, that person shall be called “Wasala”
9. If someone have enough money, but do not care or look after or give food to the old and sick parents, he shall be called a “Wasala”
10. Does anyone verbally abuse their mother, father, brothers, sisters, partner or relatives, he shall be called a “Wasala”
11. When someone is asked about the things that lead to the betterment of the the life and life after death, then he hides the real meaning and say something negative or wrong intentionally, he shall be called a “Wasala”
12. Does one sin and do not want others to know about it, or does he have hidden sins, he shall be called a “Wasala”
13. Does one go to relatives' houses and eat delicious good food as hospitality  and when those relatives come to their house next time, they are not treated as the same, that person shall be called a “Wasala”  
14. If someone deceives a Brahmin, a monk, or a beggar by lying, he shall be called a “Wasala”
15. If someone does not give anything to eat to a monk, or a beggar when they came at the time of having meals in the house, and scolding them with rude words he shall be called a “Wasala”
16. If someone is foolishly prevent offerings, alms giving and says evil words, he shall be called a “Wasala”
17. If a person thinks he is superior and despises others because of pride, he shall be called a “Wasala”
18. If someone gets angry often, is stingy, and has sinful thoughts,hypocritical, is not afraid or ashamed to do sins, he shall be called a “Wasala” 
19. If someone blames and insults the Lord Buddha, the Sangha or the devotees, he shall be called a “Wasala”
20. Does a person who has not become an Arahant say that he has become an Arahant, is a cheater, and shall be called a “Wasala”
21. Someone is not a “Wasala” or disgraceful being by birth, and someone is not a brahmin or Sacred by birth. His deeds and actions make him a disgraceful being or sacred being. 
22.  For example, Sopaka and Mathanga belonged to a lower caste, which people treated as disgraceful, but they have  become noble monks in the order of the  Buddha, and attain arahantship  which should have been taken by great sacrifice. Because of that, People from the upper castes also worshipped them. 
23.  Mathanga entered the world of Brahmins (Here,the Brahmins are not humans, they are super intelligent beings, superior to gods, they have expelled desire) by following the Noble Eightfold Path to expel the desires and defilements as The Arahants of the order of the buddha. 
24.  Even though someone was born to a higher caste, if he engages in sins habitually, he is humiliated and despised, and comes to the four awful plains after death.  His birth to an upper class does not help to prevent insults he has to bear in this world and his suffering he has to face in the afterlife.  
25.  A person is not disgraceful by his birth, a person is not noble  by his birth either. His deeds and actions make him disgraceful or noble, good deeds make him a noble person and bad deeds make him a disgraceful person. 
     

After hearing this, Aggika Bharadwaja said to The Supreme Lord Buddha, that the preaching is so great, it is similar to turning a jar that had been upside down,  As if opening something that had been covered, showing the road to someone who is lost, as a lamp was lit in the dark to give sight to those who can see. 

So he took refuge in the Supreme Lord Buddha, the Dhamma and the Sangha. He asked the lord Sammasam Buddha  to accept him as a devotee from that day.