As is in Shri Sai Satcharita, by Hemadpant .. Chapter XL Page 215

Om Sai Shri Sai Jaya Jaya Sai

This is how Sai Baba kept up and fulfilled His words uttered by Him in the dream of Hemadpant.  The story of the picture with all its details, viz., how Ali Mahomed got it, why he bought it and gave it to Hemadpant, is reserved for the next Chapter.

Bow to Shri Sai - Peace be to all