Scriptural source for the lost son story I vaguely recall reading this story before, possible from the Suttas. Can anyone tell me the scriptural source? (Not looking for modern re-telling such as those by Ven Thich Nhat Hanh.)

THE LOST SON
&quot;A young widower, who loved his five year old son very much, was away
on business when bandits came who burned down the whole village and
took his son away. When the man returned, he saw the ruins and
panicked. The took the burnt corpse of an infant to be his son and
cried uncontrollably. He organised a cremation ceremony, collected the
ashes and put them in a beautiful little bag which he always kept with
him. Soon afterwards, his real son escaped from the bandits and found
his way home. He arrived at his father's new cottage at midnight and
knocked at the door. The father, still grieving asked: &quot;Who is it?&quot;
The child answered, it is me papa, open the door!&quot; But in his agitated
state of mind, convinced his son was dead, the father thought that
some young boy was making fun of him. He shouted: &quot;Go away&quot; and
continued to cry. After some time, the child left. Father and son
never saw each other again.&quot;  After this story, the Buddha said:
&quot;Sometime, somewhere, you take something to be the truth. If you cling
to it so much, even when the truth comes in person and knocks on your
door, you will not open it.&quot;
(http://viewonbuddhism.org/resources/buddhist_stories.html)
As mentioned in another answer the story as written is published in at least one book by Thich Nhat Hanh. The following is copied from Being Peace, it's slightly more elaborate than the version you posted (e.g. &quot;velvet bag&quot; instead of &quot;little bag&quot;) but with many of the same phrases:




Thay doesn't attribute a source for this story.
The next story on the page of stories which you linked to, i.e. Angry Buddha, is attributed to Being Peace -- so I suppose that probably is where they found the Lost Son story too.
I gather that the Vietnamese tradition is eclectic so in theory Thay might have gathered that story from anywhere, but I think the content or 'moral' of the story suggests it probably is from the Mahayana or Zen tradition.