As is in Shri Sai Satcharita, by Hemadpant .. Chapter XXXVI Page 192

Om Sai Shri Sai Jaya Jaya Sai

Once, two gentlemen came from Goa, for taking darshana of Sai Baba, and prostrated themselves before Him.  Though both came together, Baba asked only one of them to give Him Rs. 15/- as Dakshina which was paid willingly.  The other man voluntarily offered Rs. 35/-.  This sum was rejected by Baba, to the astonishment of all.

Bow to Shri Sai - Peace be to all