According to MN 48. (
http://tipitaka.wikia.com/wiki/Kosambiya_Sutta" onclick="window.open(this.href);return false; ), when a noble disciple is endowed with these seven qualities, he is ready to realize the fruit of stream entry:
"The bhikkhu knows, I haven’t undispelled hindrances on account of which my mind would not see it, as it really is.These things are thoroughly dispelled from my mind and it is ready for realising the truth. This is the first noble knowledge attained, not of the world and not shared by the ordinary...
...Again, bhikkhus, the noble disciple reflects. I share this view with those come to righteousness of view. I’m also endowed with that unique characteristic. Bhikkhus, what is that unique characteristic of one come to righteousness or view?
When he does any wrong, it becomes manifest to him, and he instantly goes to the Teacher or a wise co-associate in the holy life and declares and makes it manifest and makes amends for future restrain, like a toddler who is slow to stand and lie would tred on a burning piece of charcoal and would instantly pull away from it. In the same manner when he does any wrong, it becomes manifest to him, and he instantly goes to the Teacher or a wise co-associate in the holy life and declares and makes amends for future restrain. This is a unique character of one come to righteousness of view. This is the fourth noble knowledge attained, not of the world and not shared by the ordinary."